File size: 84,608 Bytes
16a5250
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
<!DOCTYPE html>
<html lang="en"><head>
<link class="__meteor-css__" href="/c039cef9b47481baf0e9a343e536154438171f0f.css?meteor_css_resource=true" rel="stylesheet" type="text/css"/>
<link class="__meteor-css__" href="/52f02f273b0d7fd6013f016f05c3645aa114c8e6.css?meteor_css_resource=true" rel="stylesheet" type="text/css"/>
<meta content="!" name="fragment"/>
<link href="/_404.html" rel="stylesheet"/>
<link href="/_cdn/praxide-fonts.s3-us-west-1.amazonaws.com/avenir.css?family=Avenir" rel="stylesheet"/>
<link href="/_cdn/s3.amazonaws.com/edabit-images/logo_main_medium.png" rel="icon" type="image/png"/>
<title>2,500+ Python Practice Challenges // Praxide</title>
<meta content="width=device-width, initial-scale=1.0" name="viewport"/>
<link href="/_404.html" rel="stylesheet"/>
<link href="/_cdn/praxide-fonts.s3-us-west-1.amazonaws.com/avenir.css?family=Avenir" rel="stylesheet"/>
<link href="/_cdn/s3.amazonaws.com/edabit-images/logo_main_medium.png" rel="icon" type="image/png"/>
<style type="text/css">.s-alert-box,.s-alert-box *{-webkit-box-sizing:border-box;box-sizing:border-box}.s-alert-box{position:fixed;background:rgba(42,45,50,0.85);padding:22px;line-height:1.4;z-index:1000;pointer-events:none;color:rgba(250,251,255,0.95);font-size:100%;font-family:'Helvetica Neue', 'Segoe UI', Helvetica, Arial, sans-serif;-webkit-transition:top .4s, bottom .4s;transition:top .4s, bottom .4s}.s-alert-box.s-alert-show{pointer-events:auto}.s-alert-box a{color:inherit;opacity:0.7;font-weight:700}.s-alert-box a:hover,.s-alert-box a:focus{opacity:1}.s-alert-box p{margin:0}.s-alert-box.s-alert-show,.s-alert-box.s-alert-visible{pointer-events:auto}.s-alert-bottom-left{top:auto;right:auto;bottom:30px;left:30px}.s-alert-top-left{top:30px;right:auto;bottom:auto;left:30px}.s-alert-top-right{top:30px;right:30px;bottom:auto;left:auto}.s-alert-bottom-right{top:auto;right:30px;bottom:30px;left:auto}.s-alert-bottom{width:100%;max-width:100%;bottom:0;left:0;right:0;top:auto}.s-alert-top{width:100%;max-width:100%;top:0;left:0;right:0;bottom:auto}.s-alert-info{background:#2987CD;color:#fff}.s-alert-success{background:#2DB84B;color:#fff}.s-alert-warning{background:#FABC2E;color:#fff}.s-alert-error{background:#DB2828;color:#fff}[class^="s-alert-effect-"].s-alert-hide,[class*=" s-alert-effect-"].s-alert-hide{-webkit-animation-direction:reverse;animation-direction:reverse}.s-alert-box-height{visibility:hidden;position:fixed}</style><style type="text/css">.s-alert-effect-jelly a{color:#fff}.s-alert-effect-jelly a:hover,.s-alert-effect-jelly a:focus{color:#fff}.s-alert-effect-jelly .s-alert-close::before,.s-alert-effect-jelly .s-alert-close::after{background:#fff}.s-alert-effect-jelly .s-alert-close:hover::before,.s-alert-effect-jelly .s-alert-close:hover::after{background:#fff}.s-alert-effect-jelly.s-alert-show{-webkit-animation-name:animJelly;animation-name:animJelly;-webkit-animation-duration:1s;animation-duration:1s;-webkit-animation-timing-function:linear;animation-timing-function:linear}.s-alert-effect-jelly.s-alert-hide{-webkit-animation-name:animFade;animation-name:animFade;-webkit-animation-duration:0.3s;animation-duration:0.3s}@-webkit-keyframes animFade{0%{opacity:0}100%{opacity:1}}@keyframes animFade{0%{opacity:0}100%{opacity:1}}@-webkit-keyframes animJelly{0%{-webkit-transform:matrix3d(0.7, 0, 0, 0, 0, 0.7, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1);transform:matrix3d(0.7, 0, 0, 0, 0, 0.7, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1)}2.083333%{-webkit-transform:matrix3d(0.75266, 0, 0, 0, 0, 0.76342, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1);transform:matrix3d(0.75266, 0, 0, 0, 0, 0.76342, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1)}4.166667%{-webkit-transform:matrix3d(0.81071, 0, 0, 0, 0, 0.84545, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1);transform:matrix3d(0.81071, 0, 0, 0, 0, 0.84545, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1)}6.25%{-webkit-transform:matrix3d(0.86808, 0, 0, 0, 0, 0.9286, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1);transform:matrix3d(0.86808, 0, 0, 0, 0, 0.9286, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1)}8.333333%{-webkit-transform:matrix3d(0.92038, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1);transform:matrix3d(0.92038, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1)}10.416667%{-webkit-transform:matrix3d(0.96482, 0, 0, 0, 0, 1.05202, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1);transform:matrix3d(0.96482, 0, 0, 0, 0, 1.05202, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1)}12.5%{-webkit-transform:matrix3d(1, 0, 0, 0, 0, 1.08204, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1);transform:matrix3d(1, 0, 0, 0, 0, 1.08204, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1)}14.583333%{-webkit-transform:matrix3d(1.02563, 0, 0, 0, 0, 1.09149, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1);transform:matrix3d(1.02563, 0, 0, 0, 0, 1.09149, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1)}16.666667%{-webkit-transform:matrix3d(1.04227, 0, 0, 0, 0, 1.08453, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1);transform:matrix3d(1.04227, 0, 0, 0, 0, 1.08453, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1)}18.75%{-webkit-transform:matrix3d(1.05102, 0, 0, 0, 0, 1.06666, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1);transform:matrix3d(1.05102, 0, 0, 0, 0, 1.06666, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1)}20.833333%{-webkit-transform:matrix3d(1.05334, 0, 0, 0, 0, 1.04355, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1);transform:matrix3d(1.05334, 0, 0, 0, 0, 1.04355, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1)}22.916667%{-webkit-transform:matrix3d(1.05078, 0, 0, 0, 0, 1.02012, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1);transform:matrix3d(1.05078, 0, 0, 0, 0, 1.02012, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1)}25%{-webkit-transform:matrix3d(1.04487, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1);transform:matrix3d(1.04487, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1)}27.083333%{-webkit-transform:matrix3d(1.03699, 0, 0, 0, 0, 0.98534, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1);transform:matrix3d(1.03699, 0, 0, 0, 0, 0.98534, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1)}29.166667%{-webkit-transform:matrix3d(1.02831, 0, 0, 0, 0, 0.97688, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1);transform:matrix3d(1.02831, 0, 0, 0, 0, 0.97688, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1)}31.25%{-webkit-transform:matrix3d(1.01973, 0, 0, 0, 0, 0.97422, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1);transform:matrix3d(1.01973, 0, 0, 0, 0, 0.97422, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1)}33.333333%{-webkit-transform:matrix3d(1.01191, 0, 0, 0, 0, 0.97618, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1);transform:matrix3d(1.01191, 0, 0, 0, 0, 0.97618, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1)}35.416667%{-webkit-transform:matrix3d(1.00526, 0, 0, 0, 0, 0.98122, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1);transform:matrix3d(1.00526, 0, 0, 0, 0, 0.98122, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1)}37.5%{-webkit-transform:matrix3d(1, 0, 0, 0, 0, 0.98773, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1);transform:matrix3d(1, 0, 0, 0, 0, 0.98773, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1)}39.583333%{-webkit-transform:matrix3d(0.99617, 0, 0, 0, 0, 0.99433, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1);transform:matrix3d(0.99617, 0, 0, 0, 0, 0.99433, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1)}41.666667%{-webkit-transform:matrix3d(0.99368, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1);transform:matrix3d(0.99368, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1)}43.75%{-webkit-transform:matrix3d(0.99237, 0, 0, 0, 0, 1.00413, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1);transform:matrix3d(0.99237, 0, 0, 0, 0, 1.00413, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1)}45.833333%{-webkit-transform:matrix3d(0.99202, 0, 0, 0, 0, 1.00651, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1);transform:matrix3d(0.99202, 0, 0, 0, 0, 1.00651, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1)}47.916667%{-webkit-transform:matrix3d(0.99241, 0, 0, 0, 0, 1.00726, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1);transform:matrix3d(0.99241, 0, 0, 0, 0, 1.00726, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1)}50%{-webkit-transform:matrix3d(0.99329, 0, 0, 0, 0, 1.00671, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1);transform:matrix3d(0.99329, 0, 0, 0, 0, 1.00671, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1)}52.083333%{-webkit-transform:matrix3d(0.99447, 0, 0, 0, 0, 1.00529, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1);transform:matrix3d(0.99447, 0, 0, 0, 0, 1.00529, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1)}54.166667%{-webkit-transform:matrix3d(0.99577, 0, 0, 0, 0, 1.00346, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1);transform:matrix3d(0.99577, 0, 0, 0, 0, 1.00346, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1)}56.25%{-webkit-transform:matrix3d(0.99705, 0, 0, 0, 0, 1.0016, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1);transform:matrix3d(0.99705, 0, 0, 0, 0, 1.0016, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1)}58.333333%{-webkit-transform:matrix3d(0.99822, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1);transform:matrix3d(0.99822, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1)}60.416667%{-webkit-transform:matrix3d(0.99921, 0, 0, 0, 0, 0.99884, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1);transform:matrix3d(0.99921, 0, 0, 0, 0, 0.99884, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1)}62.5%{-webkit-transform:matrix3d(1, 0, 0, 0, 0, 0.99816, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1);transform:matrix3d(1, 0, 0, 0, 0, 0.99816, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1)}64.583333%{-webkit-transform:matrix3d(1.00057, 0, 0, 0, 0, 0.99795, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1);transform:matrix3d(1.00057, 0, 0, 0, 0, 0.99795, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1)}66.666667%{-webkit-transform:matrix3d(1.00095, 0, 0, 0, 0, 0.99811, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1);transform:matrix3d(1.00095, 0, 0, 0, 0, 0.99811, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1)}68.75%{-webkit-transform:matrix3d(1.00114, 0, 0, 0, 0, 0.99851, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1);transform:matrix3d(1.00114, 0, 0, 0, 0, 0.99851, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1)}70.833333%{-webkit-transform:matrix3d(1.00119, 0, 0, 0, 0, 0.99903, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1);transform:matrix3d(1.00119, 0, 0, 0, 0, 0.99903, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1)}72.916667%{-webkit-transform:matrix3d(1.00114, 0, 0, 0, 0, 0.99955, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1);transform:matrix3d(1.00114, 0, 0, 0, 0, 0.99955, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1)}75%{-webkit-transform:matrix3d(1.001, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1);transform:matrix3d(1.001, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1)}77.083333%{-webkit-transform:matrix3d(1.00083, 0, 0, 0, 0, 1.00033, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1);transform:matrix3d(1.00083, 0, 0, 0, 0, 1.00033, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1)}79.166667%{-webkit-transform:matrix3d(1.00063, 0, 0, 0, 0, 1.00052, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1);transform:matrix3d(1.00063, 0, 0, 0, 0, 1.00052, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1)}81.25%{-webkit-transform:matrix3d(1.00044, 0, 0, 0, 0, 1.00058, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1);transform:matrix3d(1.00044, 0, 0, 0, 0, 1.00058, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1)}83.333333%{-webkit-transform:matrix3d(1.00027, 0, 0, 0, 0, 1.00053, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1);transform:matrix3d(1.00027, 0, 0, 0, 0, 1.00053, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1)}85.416667%{-webkit-transform:matrix3d(1.00012, 0, 0, 0, 0, 1.00042, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1);transform:matrix3d(1.00012, 0, 0, 0, 0, 1.00042, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1)}87.5%{-webkit-transform:matrix3d(1, 0, 0, 0, 0, 1.00027, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1);transform:matrix3d(1, 0, 0, 0, 0, 1.00027, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1)}89.583333%{-webkit-transform:matrix3d(0.99991, 0, 0, 0, 0, 1.00013, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1);transform:matrix3d(0.99991, 0, 0, 0, 0, 1.00013, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1)}91.666667%{-webkit-transform:matrix3d(0.99986, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1);transform:matrix3d(0.99986, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1)}93.75%{-webkit-transform:matrix3d(0.99983, 0, 0, 0, 0, 0.99991, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1);transform:matrix3d(0.99983, 0, 0, 0, 0, 0.99991, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1)}95.833333%{-webkit-transform:matrix3d(0.99982, 0, 0, 0, 0, 0.99985, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1);transform:matrix3d(0.99982, 0, 0, 0, 0, 0.99985, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1)}97.916667%{-webkit-transform:matrix3d(0.99983, 0, 0, 0, 0, 0.99984, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1);transform:matrix3d(0.99983, 0, 0, 0, 0, 0.99984, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1)}100%{-webkit-transform:matrix3d(1, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1);transform:matrix3d(1, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1)}}@keyframes animJelly{0%{-webkit-transform:matrix3d(0.7, 0, 0, 0, 0, 0.7, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1);transform:matrix3d(0.7, 0, 0, 0, 0, 0.7, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1)}2.083333%{-webkit-transform:matrix3d(0.75266, 0, 0, 0, 0, 0.76342, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1);transform:matrix3d(0.75266, 0, 0, 0, 0, 0.76342, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1)}4.166667%{-webkit-transform:matrix3d(0.81071, 0, 0, 0, 0, 0.84545, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1);transform:matrix3d(0.81071, 0, 0, 0, 0, 0.84545, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1)}6.25%{-webkit-transform:matrix3d(0.86808, 0, 0, 0, 0, 0.9286, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1);transform:matrix3d(0.86808, 0, 0, 0, 0, 0.9286, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1)}8.333333%{-webkit-transform:matrix3d(0.92038, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1);transform:matrix3d(0.92038, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1)}10.416667%{-webkit-transform:matrix3d(0.96482, 0, 0, 0, 0, 1.05202, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1);transform:matrix3d(0.96482, 0, 0, 0, 0, 1.05202, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1)}12.5%{-webkit-transform:matrix3d(1, 0, 0, 0, 0, 1.08204, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1);transform:matrix3d(1, 0, 0, 0, 0, 1.08204, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1)}14.583333%{-webkit-transform:matrix3d(1.02563, 0, 0, 0, 0, 1.09149, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1);transform:matrix3d(1.02563, 0, 0, 0, 0, 1.09149, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1)}16.666667%{-webkit-transform:matrix3d(1.04227, 0, 0, 0, 0, 1.08453, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1);transform:matrix3d(1.04227, 0, 0, 0, 0, 1.08453, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1)}18.75%{-webkit-transform:matrix3d(1.05102, 0, 0, 0, 0, 1.06666, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1);transform:matrix3d(1.05102, 0, 0, 0, 0, 1.06666, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1)}20.833333%{-webkit-transform:matrix3d(1.05334, 0, 0, 0, 0, 1.04355, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1);transform:matrix3d(1.05334, 0, 0, 0, 0, 1.04355, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1)}22.916667%{-webkit-transform:matrix3d(1.05078, 0, 0, 0, 0, 1.02012, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1);transform:matrix3d(1.05078, 0, 0, 0, 0, 1.02012, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1)}25%{-webkit-transform:matrix3d(1.04487, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1);transform:matrix3d(1.04487, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1)}27.083333%{-webkit-transform:matrix3d(1.03699, 0, 0, 0, 0, 0.98534, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1);transform:matrix3d(1.03699, 0, 0, 0, 0, 0.98534, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1)}29.166667%{-webkit-transform:matrix3d(1.02831, 0, 0, 0, 0, 0.97688, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1);transform:matrix3d(1.02831, 0, 0, 0, 0, 0.97688, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1)}31.25%{-webkit-transform:matrix3d(1.01973, 0, 0, 0, 0, 0.97422, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1);transform:matrix3d(1.01973, 0, 0, 0, 0, 0.97422, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1)}33.333333%{-webkit-transform:matrix3d(1.01191, 0, 0, 0, 0, 0.97618, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1);transform:matrix3d(1.01191, 0, 0, 0, 0, 0.97618, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1)}35.416667%{-webkit-transform:matrix3d(1.00526, 0, 0, 0, 0, 0.98122, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1);transform:matrix3d(1.00526, 0, 0, 0, 0, 0.98122, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1)}37.5%{-webkit-transform:matrix3d(1, 0, 0, 0, 0, 0.98773, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1);transform:matrix3d(1, 0, 0, 0, 0, 0.98773, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1)}39.583333%{-webkit-transform:matrix3d(0.99617, 0, 0, 0, 0, 0.99433, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1);transform:matrix3d(0.99617, 0, 0, 0, 0, 0.99433, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1)}41.666667%{-webkit-transform:matrix3d(0.99368, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1);transform:matrix3d(0.99368, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1)}43.75%{-webkit-transform:matrix3d(0.99237, 0, 0, 0, 0, 1.00413, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1);transform:matrix3d(0.99237, 0, 0, 0, 0, 1.00413, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1)}45.833333%{-webkit-transform:matrix3d(0.99202, 0, 0, 0, 0, 1.00651, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1);transform:matrix3d(0.99202, 0, 0, 0, 0, 1.00651, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1)}47.916667%{-webkit-transform:matrix3d(0.99241, 0, 0, 0, 0, 1.00726, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1);transform:matrix3d(0.99241, 0, 0, 0, 0, 1.00726, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1)}50%{-webkit-transform:matrix3d(0.99329, 0, 0, 0, 0, 1.00671, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1);transform:matrix3d(0.99329, 0, 0, 0, 0, 1.00671, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1)}52.083333%{-webkit-transform:matrix3d(0.99447, 0, 0, 0, 0, 1.00529, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1);transform:matrix3d(0.99447, 0, 0, 0, 0, 1.00529, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1)}54.166667%{-webkit-transform:matrix3d(0.99577, 0, 0, 0, 0, 1.00346, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1);transform:matrix3d(0.99577, 0, 0, 0, 0, 1.00346, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1)}56.25%{-webkit-transform:matrix3d(0.99705, 0, 0, 0, 0, 1.0016, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1);transform:matrix3d(0.99705, 0, 0, 0, 0, 1.0016, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1)}58.333333%{-webkit-transform:matrix3d(0.99822, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1);transform:matrix3d(0.99822, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1)}60.416667%{-webkit-transform:matrix3d(0.99921, 0, 0, 0, 0, 0.99884, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1);transform:matrix3d(0.99921, 0, 0, 0, 0, 0.99884, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1)}62.5%{-webkit-transform:matrix3d(1, 0, 0, 0, 0, 0.99816, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1);transform:matrix3d(1, 0, 0, 0, 0, 0.99816, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1)}64.583333%{-webkit-transform:matrix3d(1.00057, 0, 0, 0, 0, 0.99795, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1);transform:matrix3d(1.00057, 0, 0, 0, 0, 0.99795, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1)}66.666667%{-webkit-transform:matrix3d(1.00095, 0, 0, 0, 0, 0.99811, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1);transform:matrix3d(1.00095, 0, 0, 0, 0, 0.99811, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1)}68.75%{-webkit-transform:matrix3d(1.00114, 0, 0, 0, 0, 0.99851, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1);transform:matrix3d(1.00114, 0, 0, 0, 0, 0.99851, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1)}70.833333%{-webkit-transform:matrix3d(1.00119, 0, 0, 0, 0, 0.99903, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1);transform:matrix3d(1.00119, 0, 0, 0, 0, 0.99903, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1)}72.916667%{-webkit-transform:matrix3d(1.00114, 0, 0, 0, 0, 0.99955, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1);transform:matrix3d(1.00114, 0, 0, 0, 0, 0.99955, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1)}75%{-webkit-transform:matrix3d(1.001, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1);transform:matrix3d(1.001, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1)}77.083333%{-webkit-transform:matrix3d(1.00083, 0, 0, 0, 0, 1.00033, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1);transform:matrix3d(1.00083, 0, 0, 0, 0, 1.00033, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1)}79.166667%{-webkit-transform:matrix3d(1.00063, 0, 0, 0, 0, 1.00052, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1);transform:matrix3d(1.00063, 0, 0, 0, 0, 1.00052, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1)}81.25%{-webkit-transform:matrix3d(1.00044, 0, 0, 0, 0, 1.00058, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1);transform:matrix3d(1.00044, 0, 0, 0, 0, 1.00058, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1)}83.333333%{-webkit-transform:matrix3d(1.00027, 0, 0, 0, 0, 1.00053, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1);transform:matrix3d(1.00027, 0, 0, 0, 0, 1.00053, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1)}85.416667%{-webkit-transform:matrix3d(1.00012, 0, 0, 0, 0, 1.00042, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1);transform:matrix3d(1.00012, 0, 0, 0, 0, 1.00042, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1)}87.5%{-webkit-transform:matrix3d(1, 0, 0, 0, 0, 1.00027, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1);transform:matrix3d(1, 0, 0, 0, 0, 1.00027, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1)}89.583333%{-webkit-transform:matrix3d(0.99991, 0, 0, 0, 0, 1.00013, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1);transform:matrix3d(0.99991, 0, 0, 0, 0, 1.00013, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1)}91.666667%{-webkit-transform:matrix3d(0.99986, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1);transform:matrix3d(0.99986, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1)}93.75%{-webkit-transform:matrix3d(0.99983, 0, 0, 0, 0, 0.99991, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1);transform:matrix3d(0.99983, 0, 0, 0, 0, 0.99991, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1)}95.833333%{-webkit-transform:matrix3d(0.99982, 0, 0, 0, 0, 0.99985, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1);transform:matrix3d(0.99982, 0, 0, 0, 0, 0.99985, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1)}97.916667%{-webkit-transform:matrix3d(0.99983, 0, 0, 0, 0, 0.99984, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1);transform:matrix3d(0.99983, 0, 0, 0, 0, 0.99984, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1)}100%{-webkit-transform:matrix3d(1, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1);transform:matrix3d(1, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1)}}</style><meta content="Sharpen your Python skills with fun, bite-sized exercises. Earn XP, unlock badges and level up as you go. Coding practice has never felt this rewarding." dochead="1" name="description"/><link dochead="1" href="/_cdn/s3.amazonaws.com/edabit-images/logo_main_medium.png" rel="icon" type="image/png"/><meta charset="utf-8" dochead="1"/><meta content="coding challenges, programming challenges" dochead="1" name="keywords"/><meta content="summary_large_image" dochead="1" name="twitter:card"/><meta content="@praxide" dochead="1" name="twitter:site"/><meta content="Learn to code with fun, bite-sized challenges. Earn XP, unlock achievements and level up. It's like Duolingo for learning to code." dochead="1" property="og:description"/><meta content="/_cdn/s3.amazonaws.com/edabit-images/logo_wide_large.png" dochead="1" property="og:image"/><meta content="praxide" dochead="1" property="og:site_name"/><meta content="Learn to Code with 10,000+ Interactive Challenges" dochead="1" property="og:title"/><meta content="website" dochead="1" property="og:type"/><style data-captured-cssinjs="true">.s-alert-box, .s-alert-box * { box-sizing: border-box; }
.s-alert-box { position: fixed; background: rgba(42, 45, 50, 0.85); padding: 22px; line-height: 1.4; z-index: 1000; pointer-events: none; color: rgba(250, 251, 255, 0.95); font-size: 100%; font-family: "Helvetica Neue", "Segoe UI", Helvetica, Arial, sans-serif; transition: top 0.4s, bottom 0.4s; }
.s-alert-box.s-alert-show { pointer-events: auto; }
.s-alert-box a { color: inherit; opacity: 0.7; font-weight: 700; }
.s-alert-box a:hover, .s-alert-box a:focus { opacity: 1; }
.s-alert-box p { margin: 0px; }
.s-alert-box.s-alert-show, .s-alert-box.s-alert-visible { pointer-events: auto; }
.s-alert-bottom-left { inset: auto auto 30px 30px; }
.s-alert-top-left { inset: 30px auto auto 30px; }
.s-alert-top-right { inset: 30px 30px auto auto; }
.s-alert-bottom-right { inset: auto 30px 30px auto; }
.s-alert-bottom { width: 100%; max-width: 100%; inset: auto 0px 0px; }
.s-alert-top { width: 100%; max-width: 100%; inset: 0px 0px auto; }
.s-alert-info { background: rgb(41, 135, 205); color: rgb(255, 255, 255); }
.s-alert-success { background: rgb(45, 184, 75); color: rgb(255, 255, 255); }
.s-alert-warning { background: rgb(250, 188, 46); color: rgb(255, 255, 255); }
.s-alert-error { background: rgb(219, 40, 40); color: rgb(255, 255, 255); }
[class^="s-alert-effect-"].s-alert-hide, [class*=" s-alert-effect-"].s-alert-hide { animation-direction: reverse; }
.s-alert-box-height { visibility: hidden; position: fixed; }.s-alert-effect-jelly a { color: rgb(255, 255, 255); }
.s-alert-effect-jelly a:hover, .s-alert-effect-jelly a:focus { color: rgb(255, 255, 255); }
.s-alert-effect-jelly .s-alert-close::before, .s-alert-effect-jelly .s-alert-close::after { background: rgb(255, 255, 255); }
.s-alert-effect-jelly .s-alert-close:hover::before, .s-alert-effect-jelly .s-alert-close:hover::after { background: rgb(255, 255, 255); }
.s-alert-effect-jelly.s-alert-show { animation-name: animJelly; animation-duration: 1s; animation-timing-function: linear; }
.s-alert-effect-jelly.s-alert-hide { animation-name: animFade; animation-duration: 0.3s; }
@-webkit-keyframes animFade { 
  0% { opacity: 0; }
  100% { opacity: 1; }
}
@keyframes animFade { 
  0% { opacity: 0; }
  100% { opacity: 1; }
}
@-webkit-keyframes animJelly { 
  0% { transform: matrix3d(0.7, 0, 0, 0, 0, 0.7, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1); }
  2.08333% { transform: matrix3d(0.75266, 0, 0, 0, 0, 0.76342, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1); }
  4.16667% { transform: matrix3d(0.81071, 0, 0, 0, 0, 0.84545, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1); }
  6.25% { transform: matrix3d(0.86808, 0, 0, 0, 0, 0.9286, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1); }
  8.33333% { transform: matrix3d(0.92038, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1); }
  10.4167% { transform: matrix3d(0.96482, 0, 0, 0, 0, 1.05202, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1); }
  12.5% { transform: matrix3d(1, 0, 0, 0, 0, 1.08204, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1); }
  14.5833% { transform: matrix3d(1.02563, 0, 0, 0, 0, 1.09149, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1); }
  16.6667% { transform: matrix3d(1.04227, 0, 0, 0, 0, 1.08453, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1); }
  18.75% { transform: matrix3d(1.05102, 0, 0, 0, 0, 1.06666, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1); }
  20.8333% { transform: matrix3d(1.05334, 0, 0, 0, 0, 1.04355, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1); }
  22.9167% { transform: matrix3d(1.05078, 0, 0, 0, 0, 1.02012, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1); }
  25% { transform: matrix3d(1.04487, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1); }
  27.0833% { transform: matrix3d(1.03699, 0, 0, 0, 0, 0.98534, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1); }
  29.1667% { transform: matrix3d(1.02831, 0, 0, 0, 0, 0.97688, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1); }
  31.25% { transform: matrix3d(1.01973, 0, 0, 0, 0, 0.97422, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1); }
  33.3333% { transform: matrix3d(1.01191, 0, 0, 0, 0, 0.97618, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1); }
  35.4167% { transform: matrix3d(1.00526, 0, 0, 0, 0, 0.98122, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1); }
  37.5% { transform: matrix3d(1, 0, 0, 0, 0, 0.98773, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1); }
  39.5833% { transform: matrix3d(0.99617, 0, 0, 0, 0, 0.99433, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1); }
  41.6667% { transform: matrix3d(0.99368, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1); }
  43.75% { transform: matrix3d(0.99237, 0, 0, 0, 0, 1.00413, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1); }
  45.8333% { transform: matrix3d(0.99202, 0, 0, 0, 0, 1.00651, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1); }
  47.9167% { transform: matrix3d(0.99241, 0, 0, 0, 0, 1.00726, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1); }
  50% { transform: matrix3d(0.99329, 0, 0, 0, 0, 1.00671, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1); }
  52.0833% { transform: matrix3d(0.99447, 0, 0, 0, 0, 1.00529, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1); }
  54.1667% { transform: matrix3d(0.99577, 0, 0, 0, 0, 1.00346, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1); }
  56.25% { transform: matrix3d(0.99705, 0, 0, 0, 0, 1.0016, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1); }
  58.3333% { transform: matrix3d(0.99822, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1); }
  60.4167% { transform: matrix3d(0.99921, 0, 0, 0, 0, 0.99884, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1); }
  62.5% { transform: matrix3d(1, 0, 0, 0, 0, 0.99816, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1); }
  64.5833% { transform: matrix3d(1.00057, 0, 0, 0, 0, 0.99795, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1); }
  66.6667% { transform: matrix3d(1.00095, 0, 0, 0, 0, 0.99811, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1); }
  68.75% { transform: matrix3d(1.00114, 0, 0, 0, 0, 0.99851, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1); }
  70.8333% { transform: matrix3d(1.00119, 0, 0, 0, 0, 0.99903, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1); }
  72.9167% { transform: matrix3d(1.00114, 0, 0, 0, 0, 0.99955, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1); }
  75% { transform: matrix3d(1.001, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1); }
  77.0833% { transform: matrix3d(1.00083, 0, 0, 0, 0, 1.00033, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1); }
  79.1667% { transform: matrix3d(1.00063, 0, 0, 0, 0, 1.00052, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1); }
  81.25% { transform: matrix3d(1.00044, 0, 0, 0, 0, 1.00058, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1); }
  83.3333% { transform: matrix3d(1.00027, 0, 0, 0, 0, 1.00053, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1); }
  85.4167% { transform: matrix3d(1.00012, 0, 0, 0, 0, 1.00042, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1); }
  87.5% { transform: matrix3d(1, 0, 0, 0, 0, 1.00027, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1); }
  89.5833% { transform: matrix3d(0.99991, 0, 0, 0, 0, 1.00013, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1); }
  91.6667% { transform: matrix3d(0.99986, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1); }
  93.75% { transform: matrix3d(0.99983, 0, 0, 0, 0, 0.99991, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1); }
  95.8333% { transform: matrix3d(0.99982, 0, 0, 0, 0, 0.99985, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1); }
  97.9167% { transform: matrix3d(0.99983, 0, 0, 0, 0, 0.99984, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1); }
  100% { transform: matrix3d(1, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1); }
}
@keyframes animJelly { 
  0% { transform: matrix3d(0.7, 0, 0, 0, 0, 0.7, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1); }
  2.08333% { transform: matrix3d(0.75266, 0, 0, 0, 0, 0.76342, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1); }
  4.16667% { transform: matrix3d(0.81071, 0, 0, 0, 0, 0.84545, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1); }
  6.25% { transform: matrix3d(0.86808, 0, 0, 0, 0, 0.9286, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1); }
  8.33333% { transform: matrix3d(0.92038, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1); }
  10.4167% { transform: matrix3d(0.96482, 0, 0, 0, 0, 1.05202, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1); }
  12.5% { transform: matrix3d(1, 0, 0, 0, 0, 1.08204, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1); }
  14.5833% { transform: matrix3d(1.02563, 0, 0, 0, 0, 1.09149, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1); }
  16.6667% { transform: matrix3d(1.04227, 0, 0, 0, 0, 1.08453, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1); }
  18.75% { transform: matrix3d(1.05102, 0, 0, 0, 0, 1.06666, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1); }
  20.8333% { transform: matrix3d(1.05334, 0, 0, 0, 0, 1.04355, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1); }
  22.9167% { transform: matrix3d(1.05078, 0, 0, 0, 0, 1.02012, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1); }
  25% { transform: matrix3d(1.04487, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1); }
  27.0833% { transform: matrix3d(1.03699, 0, 0, 0, 0, 0.98534, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1); }
  29.1667% { transform: matrix3d(1.02831, 0, 0, 0, 0, 0.97688, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1); }
  31.25% { transform: matrix3d(1.01973, 0, 0, 0, 0, 0.97422, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1); }
  33.3333% { transform: matrix3d(1.01191, 0, 0, 0, 0, 0.97618, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1); }
  35.4167% { transform: matrix3d(1.00526, 0, 0, 0, 0, 0.98122, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1); }
  37.5% { transform: matrix3d(1, 0, 0, 0, 0, 0.98773, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1); }
  39.5833% { transform: matrix3d(0.99617, 0, 0, 0, 0, 0.99433, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1); }
  41.6667% { transform: matrix3d(0.99368, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1); }
  43.75% { transform: matrix3d(0.99237, 0, 0, 0, 0, 1.00413, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1); }
  45.8333% { transform: matrix3d(0.99202, 0, 0, 0, 0, 1.00651, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1); }
  47.9167% { transform: matrix3d(0.99241, 0, 0, 0, 0, 1.00726, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1); }
  50% { transform: matrix3d(0.99329, 0, 0, 0, 0, 1.00671, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1); }
  52.0833% { transform: matrix3d(0.99447, 0, 0, 0, 0, 1.00529, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1); }
  54.1667% { transform: matrix3d(0.99577, 0, 0, 0, 0, 1.00346, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1); }
  56.25% { transform: matrix3d(0.99705, 0, 0, 0, 0, 1.0016, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1); }
  58.3333% { transform: matrix3d(0.99822, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1); }
  60.4167% { transform: matrix3d(0.99921, 0, 0, 0, 0, 0.99884, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1); }
  62.5% { transform: matrix3d(1, 0, 0, 0, 0, 0.99816, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1); }
  64.5833% { transform: matrix3d(1.00057, 0, 0, 0, 0, 0.99795, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1); }
  66.6667% { transform: matrix3d(1.00095, 0, 0, 0, 0, 0.99811, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1); }
  68.75% { transform: matrix3d(1.00114, 0, 0, 0, 0, 0.99851, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1); }
  70.8333% { transform: matrix3d(1.00119, 0, 0, 0, 0, 0.99903, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1); }
  72.9167% { transform: matrix3d(1.00114, 0, 0, 0, 0, 0.99955, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1); }
  75% { transform: matrix3d(1.001, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1); }
  77.0833% { transform: matrix3d(1.00083, 0, 0, 0, 0, 1.00033, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1); }
  79.1667% { transform: matrix3d(1.00063, 0, 0, 0, 0, 1.00052, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1); }
  81.25% { transform: matrix3d(1.00044, 0, 0, 0, 0, 1.00058, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1); }
  83.3333% { transform: matrix3d(1.00027, 0, 0, 0, 0, 1.00053, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1); }
  85.4167% { transform: matrix3d(1.00012, 0, 0, 0, 0, 1.00042, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1); }
  87.5% { transform: matrix3d(1, 0, 0, 0, 0, 1.00027, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1); }
  89.5833% { transform: matrix3d(0.99991, 0, 0, 0, 0, 1.00013, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1); }
  91.6667% { transform: matrix3d(0.99986, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1); }
  93.75% { transform: matrix3d(0.99983, 0, 0, 0, 0, 0.99991, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1); }
  95.8333% { transform: matrix3d(0.99982, 0, 0, 0, 0, 0.99985, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1); }
  97.9167% { transform: matrix3d(0.99983, 0, 0, 0, 0, 0.99984, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1); }
  100% { transform: matrix3d(1, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1); }
}</style><style>*,*::before,*::after{animation-duration:0s!important;animation-delay:0s!important;transition-duration:0s!important;transition-delay:0s!important;scroll-behavior:auto!important;caret-color:transparent!important}</style></head>
<body>
<iframe aria-hidden="true" id="_hjSafeContext_16514312" src="/challenges/python3/about:blank" style="display: none !important; width: 1px !important; height: 1px !important; opacity: 0 !important; pointer-events: none !important;" tabindex="-1" title="_hjSafeContext"></iframe><div id="react-root"><div id="MainLayout"><header><div class="nav-shadow" style="background-color: rgb(45, 184, 75);"><div class="ui inverted text attached menu"><div class="ui container" style="height: 65px;"><a class="active link item edabit-logo" href="/." style="margin-top: 4px; margin-left: -18px; font-weight: 600;">praxide</a><a class="link item navbar-item" href="/tutorials" style="font-size: 1.15rem; font-weight: 500; letter-spacing: 0.02em;"><span>Tutorials</span></a><a class="active link item navbar-item" href="/challenges" style="font-size: 1.15rem; font-weight: 500; letter-spacing: 0.02em; padding-bottom: 5px; border-bottom: 2px solid rgb(247, 247, 247);"><span>Challenges</span></a><a class="link item navbar-item" href="/practice" style="font-size: 1.15rem; font-weight: 500; letter-spacing: 0.02em;"><span>Practice</span></a><a class="link item navbar-item" href="/shuffle" style="font-size: 1.15rem; font-weight: 500; letter-spacing: 0.02em;"><span>Shuffle</span></a><div class="right menu"><div class="item"><button class="ui inverted button" role="button"><span>Sign In</span></button></div><div class="item"><button class="ui inverted button" role="button"><span>Register</span></button></div></div></div></div></div></header><main id="Main"><div class="ui container" style="margin-bottom: 20px;"><div class="ui doubling stackable two column grid" style="margin-top: 3px;"><div class="four wide column"><form class="ui form no-highlight" style="margin-top: 6px;"><div class="field"><div class="field"><div aria-expanded="false" class="ui fluid selection dropdown" role="listbox" tabindex="0"><div aria-live="polite" class="text" role="alert">Python</div><i aria-hidden="true" class="dropdown icon"></i><div class="menu transition"><div aria-checked="false" aria-selected="false" class="item" role="option" style="pointer-events: all;">C#</div><div aria-checked="false" aria-selected="false" class="item" role="option" style="pointer-events: all;">C++</div><div aria-checked="false" aria-selected="false" class="item" role="option" style="pointer-events: all;">Java</div><div aria-checked="false" aria-selected="false" class="item" role="option" style="pointer-events: all;">JavaScript</div><div aria-checked="false" aria-selected="false" class="item" role="option" style="pointer-events: all;">PHP</div><div aria-checked="true" aria-selected="true" class="active selected item" role="option" style="pointer-events: all;">Python</div><div aria-checked="false" aria-selected="false" class="item" role="option" style="pointer-events: all;">Ruby</div><div aria-checked="false" aria-selected="false" class="item" role="option" style="pointer-events: all;">Swift</div></div></div></div></div><div class="field"><div class="field"><div aria-expanded="false" class="ui fluid selection dropdown" role="listbox" style="margin-top: -2px;" tabindex="0"><div aria-live="polite" class="text" role="alert">Very Easy</div><i aria-hidden="true" class="dropdown icon"></i><div class="menu transition"><div aria-checked="false" aria-selected="true" class="selected item" role="option" style="pointer-events: all;">Very Easy</div><div aria-checked="false" aria-selected="false" class="item" role="option" style="pointer-events: all;">Easy</div><div aria-checked="false" aria-selected="false" class="item" role="option" style="pointer-events: all;">Medium</div><div aria-checked="false" aria-selected="false" class="item" role="option" style="pointer-events: all;">Hard</div><div aria-checked="false" aria-selected="false" class="item" role="option" style="pointer-events: all;">Very Hard</div><div aria-checked="false" aria-selected="false" class="item" role="option" style="pointer-events: all;">Expert</div></div></div></div></div><div class="field"><div class="field"><div aria-expanded="false" class="ui fluid search selection dropdown" role="combobox" style="margin-top: -2px; margin-bottom: -2px;"><input aria-autocomplete="list" autocomplete="off" class="search" tabindex="0" type="text" value=""/><div aria-live="polite" class="default text" role="alert">Tags (optional)</div><i aria-hidden="true" class="dropdown icon"></i><div class="menu transition" role="listbox"><div aria-checked="false" aria-selected="true" class="selected item" role="option" style="pointer-events: all;">Algebra</div><div aria-checked="false" aria-selected="false" class="item" role="option" style="pointer-events: all;">Algorithms</div><div aria-checked="false" aria-selected="false" class="item" role="option" style="pointer-events: all;">Arrays</div><div aria-checked="false" aria-selected="false" class="item" role="option" style="pointer-events: all;">Bit Operations</div><div aria-checked="false" aria-selected="false" class="item" role="option" style="pointer-events: all;">Bug Fixes</div><div aria-checked="false" aria-selected="false" class="item" role="option" style="pointer-events: all;">Classes</div><div aria-checked="false" aria-selected="false" class="item" role="option" style="pointer-events: all;">Closures</div><div aria-checked="false" aria-selected="false" class="item" role="option" style="pointer-events: all;">Conditions</div><div aria-checked="false" aria-selected="false" class="item" role="option" style="pointer-events: all;">Control Flow</div><div aria-checked="false" aria-selected="false" class="item" role="option" style="pointer-events: all;">Cryptography</div><div aria-checked="false" aria-selected="false" class="item" role="option" style="pointer-events: all;">Data Structures</div><div aria-checked="false" aria-selected="false" class="item" role="option" style="pointer-events: all;">Dates</div><div aria-checked="false" aria-selected="false" class="item" role="option" style="pointer-events: all;">Formatting</div><div aria-checked="false" aria-selected="false" class="item" role="option" style="pointer-events: all;">Functional Programming</div><div aria-checked="false" aria-selected="false" class="item" role="option" style="pointer-events: all;">Games</div><div aria-checked="false" aria-selected="false" class="item" role="option" style="pointer-events: all;">Geometry</div><div aria-checked="false" aria-selected="false" class="item" role="option" style="pointer-events: all;">Higher Order Functions</div><div aria-checked="false" aria-selected="false" class="item" role="option" style="pointer-events: all;">Interview</div><div aria-checked="false" aria-selected="false" class="item" role="option" style="pointer-events: all;">Language Fundamentals</div><div aria-checked="false" aria-selected="false" class="item" role="option" style="pointer-events: all;">Logic</div><div aria-checked="false" aria-selected="false" class="item" role="option" style="pointer-events: all;">Loops</div><div aria-checked="false" aria-selected="false" class="item" role="option" style="pointer-events: all;">Math</div><div aria-checked="false" aria-selected="false" class="item" role="option" style="pointer-events: all;">Numbers</div><div aria-checked="false" aria-selected="false" class="item" role="option" style="pointer-events: all;">Objects</div><div aria-checked="false" aria-selected="false" class="item" role="option" style="pointer-events: all;">Physics</div><div aria-checked="false" aria-selected="false" class="item" role="option" style="pointer-events: all;">Recursion</div><div aria-checked="false" aria-selected="false" class="item" role="option" style="pointer-events: all;">Regex</div><div aria-checked="false" aria-selected="false" class="item" role="option" style="pointer-events: all;">Scope</div><div aria-checked="false" aria-selected="false" class="item" role="option" style="pointer-events: all;">Sorting</div><div aria-checked="false" aria-selected="false" class="item" role="option" style="pointer-events: all;">Strings</div><div aria-checked="false" aria-selected="false" class="item" role="option" style="pointer-events: all;">Validation</div></div></div></div></div></form><div class="no-highlight hide-complete" style="color: rgb(224, 225, 226); cursor: not-allowed;"><div><span style="text-transform: uppercase; font-size: 11px; margin-left: 5px;"><span>Hide finished</span></span><div class="disabled field float-right"><div class="ui disabled fitted toggle checkbox"><input class="hidden" readonly="" tabindex="-1" type="checkbox" value="on"/><label></label></div></div></div></div><div style="margin-top: 26px;"><div class="no-highlight hidden-small"><svg class="react-calendar-heatmap" viewbox="0 0 175 90"><g class="react-calendar-heatmap-month-labels" transform="translate(0, 0)"><text class="react-calendar-heatmap-month-label" x="22" y="10">Mar</text><text class="react-calendar-heatmap-month-label" x="77" y="10">Apr</text><text class="react-calendar-heatmap-month-label" x="121" y="10">May</text></g><g class="react-calendar-heatmap-all-weeks" transform="translate(0, 14)"><g class="react-calendar-heatmap-week" transform="translate(0, 0)"><rect class="color-empty" height="10" width="10" x="0" y="55"><title></title></rect><rect class="color-empty" height="10" width="10" x="0" y="66"><title></title></rect></g><g class="react-calendar-heatmap-week" transform="translate(11, 0)"><rect class="color-empty" height="10" width="10" x="0" y="0"><title></title></rect><rect class="color-empty" height="10" width="10" x="0" y="11"><title></title></rect><rect class="color-empty" height="10" width="10" x="0" y="22"><title></title></rect><rect class="color-empty" height="10" width="10" x="0" y="33"><title></title></rect><rect class="color-empty" height="10" width="10" x="0" y="44"><title></title></rect><rect class="color-empty" height="10" width="10" x="0" y="55"><title></title></rect><rect class="color-empty" height="10" width="10" x="0" y="66"><title></title></rect></g><g class="react-calendar-heatmap-week" transform="translate(22, 0)"><rect class="color-empty" height="10" width="10" x="0" y="0"><title></title></rect><rect class="color-empty" height="10" width="10" x="0" y="11"><title></title></rect><rect class="color-empty" height="10" width="10" x="0" y="22"><title></title></rect><rect class="color-empty" height="10" width="10" x="0" y="33"><title></title></rect><rect class="color-empty" height="10" width="10" x="0" y="44"><title></title></rect><rect class="color-empty" height="10" width="10" x="0" y="55"><title></title></rect><rect class="color-empty" height="10" width="10" x="0" y="66"><title></title></rect></g><g class="react-calendar-heatmap-week" transform="translate(33, 0)"><rect class="color-empty" height="10" width="10" x="0" y="0"><title></title></rect><rect class="color-empty" height="10" width="10" x="0" y="11"><title></title></rect><rect class="color-empty" height="10" width="10" x="0" y="22"><title></title></rect><rect class="color-empty" height="10" width="10" x="0" y="33"><title></title></rect><rect class="color-empty" height="10" width="10" x="0" y="44"><title></title></rect><rect class="color-empty" height="10" width="10" x="0" y="55"><title></title></rect><rect class="color-empty" height="10" width="10" x="0" y="66"><title></title></rect></g><g class="react-calendar-heatmap-week" transform="translate(44, 0)"><rect class="color-empty" height="10" width="10" x="0" y="0"><title></title></rect><rect class="color-empty" height="10" width="10" x="0" y="11"><title></title></rect><rect class="color-empty" height="10" width="10" x="0" y="22"><title></title></rect><rect class="color-empty" height="10" width="10" x="0" y="33"><title></title></rect><rect class="color-empty" height="10" width="10" x="0" y="44"><title></title></rect><rect class="color-empty" height="10" width="10" x="0" y="55"><title></title></rect><rect class="color-empty" height="10" width="10" x="0" y="66"><title></title></rect></g><g class="react-calendar-heatmap-week" transform="translate(55, 0)"><rect class="color-empty" height="10" width="10" x="0" y="0"><title></title></rect><rect class="color-empty" height="10" width="10" x="0" y="11"><title></title></rect><rect class="color-empty" height="10" width="10" x="0" y="22"><title></title></rect><rect class="color-empty" height="10" width="10" x="0" y="33"><title></title></rect><rect class="color-empty" height="10" width="10" x="0" y="44"><title></title></rect><rect class="color-empty" height="10" width="10" x="0" y="55"><title></title></rect><rect class="color-empty" height="10" width="10" x="0" y="66"><title></title></rect></g><g class="react-calendar-heatmap-week" transform="translate(66, 0)"><rect class="color-empty" height="10" width="10" x="0" y="0"><title></title></rect><rect class="color-empty" height="10" width="10" x="0" y="11"><title></title></rect><rect class="color-empty" height="10" width="10" x="0" y="22"><title></title></rect><rect class="color-empty" height="10" width="10" x="0" y="33"><title></title></rect><rect class="color-empty" height="10" width="10" x="0" y="44"><title></title></rect><rect class="color-empty" height="10" width="10" x="0" y="55"><title></title></rect><rect class="color-empty" height="10" width="10" x="0" y="66"><title></title></rect></g><g class="react-calendar-heatmap-week" transform="translate(77, 0)"><rect class="color-empty" height="10" width="10" x="0" y="0"><title></title></rect><rect class="color-empty" height="10" width="10" x="0" y="11"><title></title></rect><rect class="color-empty" height="10" width="10" x="0" y="22"><title></title></rect><rect class="color-empty" height="10" width="10" x="0" y="33"><title></title></rect><rect class="color-empty" height="10" width="10" x="0" y="44"><title></title></rect><rect class="color-empty" height="10" width="10" x="0" y="55"><title></title></rect><rect class="color-empty" height="10" width="10" x="0" y="66"><title></title></rect></g><g class="react-calendar-heatmap-week" transform="translate(88, 0)"><rect class="color-empty" height="10" width="10" x="0" y="0"><title></title></rect><rect class="color-empty" height="10" width="10" x="0" y="11"><title></title></rect><rect class="color-empty" height="10" width="10" x="0" y="22"><title></title></rect><rect class="color-empty" height="10" width="10" x="0" y="33"><title></title></rect><rect class="color-empty" height="10" width="10" x="0" y="44"><title></title></rect><rect class="color-empty" height="10" width="10" x="0" y="55"><title></title></rect><rect class="color-empty" height="10" width="10" x="0" y="66"><title></title></rect></g><g class="react-calendar-heatmap-week" transform="translate(99, 0)"><rect class="color-empty" height="10" width="10" x="0" y="0"><title></title></rect><rect class="color-empty" height="10" width="10" x="0" y="11"><title></title></rect><rect class="color-empty" height="10" width="10" x="0" y="22"><title></title></rect><rect class="color-empty" height="10" width="10" x="0" y="33"><title></title></rect><rect class="color-empty" height="10" width="10" x="0" y="44"><title></title></rect><rect class="color-empty" height="10" width="10" x="0" y="55"><title></title></rect><rect class="color-empty" height="10" width="10" x="0" y="66"><title></title></rect></g><g class="react-calendar-heatmap-week" transform="translate(110, 0)"><rect class="color-empty" height="10" width="10" x="0" y="0"><title></title></rect><rect class="color-empty" height="10" width="10" x="0" y="11"><title></title></rect><rect class="color-empty" height="10" width="10" x="0" y="22"><title></title></rect><rect class="color-empty" height="10" width="10" x="0" y="33"><title></title></rect><rect class="color-empty" height="10" width="10" x="0" y="44"><title></title></rect><rect class="color-empty" height="10" width="10" x="0" y="55"><title></title></rect><rect class="color-empty" height="10" width="10" x="0" y="66"><title></title></rect></g><g class="react-calendar-heatmap-week" transform="translate(121, 0)"><rect class="color-empty" height="10" width="10" x="0" y="0"><title></title></rect><rect class="color-empty" height="10" width="10" x="0" y="11"><title></title></rect><rect class="color-empty" height="10" width="10" x="0" y="22"><title></title></rect><rect class="color-empty" height="10" width="10" x="0" y="33"><title></title></rect><rect class="color-empty" height="10" width="10" x="0" y="44"><title></title></rect><rect class="color-empty" height="10" width="10" x="0" y="55"><title></title></rect><rect class="color-empty" height="10" width="10" x="0" y="66"><title></title></rect></g><g class="react-calendar-heatmap-week" transform="translate(132, 0)"><rect class="color-empty" height="10" width="10" x="0" y="0"><title></title></rect><rect class="color-empty" height="10" width="10" x="0" y="11"><title></title></rect><rect class="color-empty" height="10" width="10" x="0" y="22"><title></title></rect><rect class="color-empty" height="10" width="10" x="0" y="33"><title></title></rect><rect class="color-empty" height="10" width="10" x="0" y="44"><title></title></rect><rect class="color-empty" height="10" width="10" x="0" y="55"><title></title></rect><rect class="color-empty" height="10" width="10" x="0" y="66"><title></title></rect></g><g class="react-calendar-heatmap-week" transform="translate(143, 0)"><rect class="color-empty" height="10" width="10" x="0" y="0"><title></title></rect><rect class="color-empty" height="10" width="10" x="0" y="11"><title></title></rect><rect class="color-empty" height="10" width="10" x="0" y="22"><title></title></rect><rect class="color-empty" height="10" width="10" x="0" y="33"><title></title></rect><rect class="color-empty" height="10" width="10" x="0" y="44"><title></title></rect><rect class="color-empty" height="10" width="10" x="0" y="55"><title></title></rect><rect class="color-empty" height="10" width="10" x="0" y="66"><title></title></rect></g><g class="react-calendar-heatmap-week" transform="translate(154, 0)"><rect class="color-empty" height="10" width="10" x="0" y="0"><title></title></rect><rect class="color-empty" height="10" width="10" x="0" y="11"><title></title></rect><rect class="color-empty" height="10" width="10" x="0" y="22"><title></title></rect><rect class="color-empty" height="10" width="10" x="0" y="33"><title></title></rect><rect class="color-empty" height="10" width="10" x="0" y="44"><title></title></rect><rect class="color-empty" height="10" width="10" x="0" y="55"><title></title></rect><rect class="color-empty" height="10" width="10" x="0" y="66"><title></title></rect></g><g class="react-calendar-heatmap-week" transform="translate(165, 0)"><rect class="color-empty" height="10" width="10" x="0" y="0"><title></title></rect><rect class="color-empty" height="10" width="10" x="0" y="11"><title></title></rect><rect class="color-empty" height="10" width="10" x="0" y="22"><title></title></rect><rect class="color-empty" height="10" width="10" x="0" y="33"><title></title></rect><rect class="color-empty" height="10" width="10" x="0" y="44"><title></title></rect></g></g><g class="react-calendar-heatmap-weekday-labels" transform="translate(10, 14)"></g></svg></div></div><div class="hidden-small" style="margin-top: 20px; text-align: center;"><svg class="CircularProgressbar no-highlight" viewbox="0 0 100 100"><path class="CircularProgressbar-trail" d="
      M 50,50
      m 0,-48.5
      a 48.5,48.5 0 1 1 0,97
      a 48.5,48.5 0 1 1 0,-97
    " fill-opacity="0" stroke-width="3"></path><path class="CircularProgressbar-path" d="
      M 50,50
      m 0,-48.5
      a 48.5,48.5 0 1 1 0,97
      a 48.5,48.5 0 1 1 0,-97
    " fill-opacity="0" stroke-width="3" style="stroke-dasharray: 304.734px, 304.734px; stroke-dashoffset: 304.734px;"></path><text class="CircularProgressbar-text" x="50" y="50">Level 0</text></svg></div></div><div class="twelve wide column"><div style="margin-bottom: 15px; margin-top: 5px;"><div class="explore-message inf no-highlight"><i aria-hidden="true" class="red video play large icon" style="margin-right: 15px;"></i>See a quick demo of how Praxide works.<div class="message-button"><button class="ui blue tiny button" role="button">PLAY DEMO</button></div></div></div><div class="ui container"><div class="ui divided selection very relaxed middle aligned list" role="list"><div class="item no-highlight" role="listitem"><div class="right floated content"><div aria-expanded="false" class="ui simple top right pointing dropdown" role="listbox" style="margin-bottom: 30px; margin-top: 0px; padding-bottom: 3px;" tabindex="0"><div aria-live="polite" class="text" role="alert"></div><i aria-hidden="true" class="ellipsis horizontal large link icon"></i><div class="menu transition" style="margin-right: -4px; margin-top: 0px; min-width: 115px;"><div aria-disabled="true" class="disabled item" role="option">Pin to bookmarks</div><div aria-disabled="true" class="disabled item" role="option">Save to collection</div></div></div></div><a class="content" href="/challenge/8ym3dKrL3svkYr4h4"><h3 class="header">How Praxide Works</h3><div class="description" style="font-size: 1.05rem; min-height: 45px;">Here's a friendly walkthrough of how challenges on Praxide play out. Over in the Code tab above, you'll find a starter function that reads like this: def hello(): Your only job is to type return "hello praxide.com" on the second line, then hit the Check button. Nail it, and the button glows red and switches to SUBMIT FINAL. …</div><div class="tags"><div class="ui small label">language_fundamentals</div><div class="ui small label">strings</div></div><div style="color: rgb(45, 184, 75); float: right; font-size: 12px; padding-right: 10px; padding-top: 11px;">Very Easy</div></a></div><div class="item no-highlight" role="listitem"><div class="right floated content"><div aria-expanded="false" class="ui simple top right pointing dropdown" role="listbox" style="margin-bottom: 30px; margin-top: 0px; padding-bottom: 3px;" tabindex="0"><div aria-live="polite" class="text" role="alert"></div><i aria-hidden="true" class="ellipsis horizontal large link icon"></i><div class="menu transition" style="margin-right: -4px; margin-top: 0px; min-width: 115px;"><div aria-disabled="true" class="disabled item" role="option">Pin to bookmarks</div><div aria-disabled="true" class="disabled item" role="option">Save to collection</div></div></div></div><a class="content" href="/challenge/rZToTkR5eB9Zn4zLh"><h3 class="header">Sum Two Numbers and Return It</h3><div class="description" style="font-size: 1.05rem; min-height: 45px;">Write a function that accepts two numbers as arguments and hands back their sum. Examples addition(3, 2) ➞ 5 addition(-3, -6) ➞ -9 addition(7, 3) ➞ 10 Notes Remember to return your answer. Whenever a challenge trips you up, grab a hint from the Resources tab. Still stuck? Reveal the answer in the Solutions tab.</div><div class="tags"><div class="ui small label">algebra</div><div class="ui small label">language_fundamentals</div><div class="ui small label">math</div><div class="ui small label">numbers</div></div><div style="color: rgb(45, 184, 75); float: right; font-size: 12px; padding-right: 10px; padding-top: 11px;">Very Easy</div></a></div><div class="item no-highlight" role="listitem"><div class="right floated content"><div aria-expanded="false" class="ui simple top right pointing dropdown" role="listbox" style="margin-bottom: 30px; margin-top: 0px; padding-bottom: 3px;" tabindex="0"><div aria-live="polite" class="text" role="alert"></div><i aria-hidden="true" class="ellipsis horizontal large link icon"></i><div class="menu transition" style="margin-right: -4px; margin-top: 0px; min-width: 115px;"><div aria-disabled="true" class="disabled item" role="option">Pin to bookmarks</div><div aria-disabled="true" class="disabled item" role="option">Save to collection</div></div></div></div><a class="content" href="/challenge/KjCS7occ9hfu5snpb"><h3 class="header">Return the Next Value After the Given Integer</h3><div class="description" style="font-size: 1.05rem; min-height: 45px;">Write a function that accepts a single number as an argument, bumps that number up by +1, and returns the result. Examples addition(0) ➞ 1 addition(9) ➞ 10 addition(-3) ➞ -2 Notes Remember to return your answer. Whenever a challenge trips you up, grab a hint from the Resources tab. Really stuck? Unlock the solutions in the So …</div><div class="tags"><div class="ui small label">algebra</div><div class="ui small label">math</div><div class="ui small label">numbers</div></div><div style="color: rgb(45, 184, 75); float: right; font-size: 12px; padding-right: 10px; padding-top: 11px;">Very Easy</div></a></div><div class="item no-highlight" role="listitem"><div class="right floated content"><div aria-expanded="false" class="ui simple top right pointing dropdown" role="listbox" style="margin-bottom: 30px; margin-top: 0px; padding-bottom: 3px;" tabindex="0"><div aria-live="polite" class="text" role="alert"></div><i aria-hidden="true" class="ellipsis horizontal large link icon"></i><div class="menu transition" style="margin-right: -4px; margin-top: 0px; min-width: 115px;"><div aria-disabled="true" class="disabled item" role="option">Pin to bookmarks</div><div aria-disabled="true" class="disabled item" role="option">Save to collection</div></div></div></div><a class="content" href="/challenge/FQyaaJx7orS7tiwz8"><h3 class="header">Change Minutes into Seconds</h3><div class="description" style="font-size: 1.05rem; min-height: 45px;">Build a function that receives an integer minutes and turns it into the matching number of seconds. Examples convert(5) ➞ 300 convert(3) ➞ 180 convert(2) ➞ 120 Notes Remember to return your final value. Feeling stuck on this one? Grab a hint from the Resources tab. Totally stuck? Reveal the answer in the Solutions tab.</div><div class="tags"><div class="ui small label">language_fundamentals</div><div class="ui small label">math</div><div class="ui small label">numbers</div></div><div style="color: rgb(45, 184, 75); float: right; font-size: 12px; padding-right: 10px; padding-top: 11px;">Very Easy</div></a></div><div class="item no-highlight" role="listitem"><div class="right floated content"><div aria-expanded="false" class="ui simple top right pointing dropdown" role="listbox" style="margin-bottom: 30px; margin-top: 0px; padding-bottom: 3px;" tabindex="0"><div aria-live="polite" class="text" role="alert"></div><i aria-hidden="true" class="ellipsis horizontal large link icon"></i><div class="menu transition" style="margin-right: -4px; margin-top: 0px; min-width: 115px;"><div aria-disabled="true" class="disabled item" role="option">Add to bookmarks</div><div aria-disabled="true" class="disabled item" role="option">Add to collection</div></div></div></div><a class="content" href="/challenge/aWLTzrRsrw7RakYrN"><h3 class="header">Triangle Area Finder</h3><div class="description" style="font-size: 1.05rem; min-height: 45px;">Build a function that receives the base and height of a triangle and hands back its area. Examples tri_area(3, 2) ➞ 3 tri_area(7, 4) ➞ 14 tri_area(10, 10) ➞ 50 Notes The area of a triangle is: (base * height) / 2 Remember to return your final value. Feeling stuck on this one? Grab a hint from the Resources tab. If you're really …</div><div class="tags"><div class="ui small label">geometry</div><div class="ui small label">math</div><div class="ui small label">numbers</div></div><div style="color: rgb(45, 184, 75); float: right; font-size: 12px; padding-right: 10px; padding-top: 11px;">Very Easy</div></a></div><div class="item no-highlight" role="listitem"><div class="right floated content"><div aria-expanded="false" class="ui simple top right pointing dropdown" role="listbox" style="margin-bottom: 30px; margin-top: 0px; padding-bottom: 3px;" tabindex="0"><div aria-live="polite" class="text" role="alert"></div><i aria-hidden="true" class="ellipsis horizontal large link icon"></i><div class="menu transition" style="margin-right: -4px; margin-top: 0px; min-width: 115px;"><div aria-disabled="true" class="disabled item" role="option">Add to bookmarks</div><div aria-disabled="true" class="disabled item" role="option">Add to collection</div></div></div></div><a class="content" href="/challenge/CjXamaNRmKxwkmBxq"><h3 class="header">Fix This Bug (Part 1)</h3><div class="description" style="font-size: 1.05rem; min-height: 45px;">Repair the code in the code tab so this challenge passes (only syntax errors here). Peek at the examples below to get a feel for what the function should do. Examples cube(3) ➞ 27 cube(5) ➞ 125 cube(10) ➞ 1000 Notes READ EACH LINE SLOWLY, LETTER BY LETTER! Don't overthink this one; it really isn't meant to be tricky.</div><div class="tags"><div class="ui small label">bugs</div><div class="ui small label">language_fundamentals</div></div><div style="color: rgb(45, 184, 75); float: right; font-size: 12px; padding-right: 10px; padding-top: 11px;">Very Easy</div></a></div><div class="item no-highlight" role="listitem"><div class="right floated content"><div aria-expanded="false" class="ui simple top right pointing dropdown" role="listbox" style="margin-bottom: 30px; margin-top: 0px; padding-bottom: 3px;" tabindex="0"><div aria-live="polite" class="text" role="alert"></div><i aria-hidden="true" class="ellipsis horizontal large link icon"></i><div class="menu transition" style="margin-right: -4px; margin-top: 0px; min-width: 115px;"><div aria-disabled="true" class="disabled item" role="option">Add to bookmarks</div><div aria-disabled="true" class="disabled item" role="option">Add to collection</div></div></div></div><a class="content" href="/challenge/nyeNvKWdDFKRAk4Da"><h3 class="header">Change Hours into Seconds</h3><div class="description" style="font-size: 1.05rem; min-height: 45px;">Build a function that turns a number of hours into seconds. Examples howmanyseconds(2) ➞ 7200 howmanyseconds(10) ➞ 36000 howmanyseconds(24) ➞ 86400 Notes 60 seconds in a minute, 60 minutes in an hour Remember to return your answer.</div><div class="tags"><div class="ui small label">language_fundamentals</div><div class="ui small label">math</div><div class="ui small label">numbers</div></div><div style="color: rgb(45, 184, 75); float: right; font-size: 12px; padding-right: 10px; padding-top: 11px;">Very Easy</div></a></div><div class="item no-highlight" role="listitem"><div class="right floated content"><div aria-expanded="false" class="ui simple top right pointing dropdown" role="listbox" style="margin-bottom: 30px; margin-top: 0px; padding-bottom: 3px;" tabindex="0"><div aria-live="polite" class="text" role="alert"></div><i aria-hidden="true" class="ellipsis horizontal large link icon"></i><div class="menu transition" style="margin-right: -4px; margin-top: 0px; min-width: 115px;"><div aria-disabled="true" class="disabled item" role="option">Add to bookmarks</div><div aria-disabled="true" class="disabled item" role="option">Add to collection</div></div></div></div><a class="content" href="/challenge/Zerwo2AENbvRZTe83"><h3 class="header">Largest Edge of a Triangle</h3><div class="description" style="font-size: 1.05rem; min-height: 45px;">Build a function that works out the maximum range of a triangle's third edge, given that every side length is an integer. Examples next_edge(8, 10) ➞ 17 next_edge(5, 7) ➞ 11 next_edge(9, 2) ➞ 10 Notes (side1 + side2) - 1 = maximum range of third edge. The side lengths of the triangle are positive integers. Don't forget to retu …</div><div class="tags"><div class="ui small label">algorithms</div><div class="ui small label">math</div><div class="ui small label">numbers</div></div><div style="color: rgb(45, 184, 75); float: right; font-size: 12px; padding-right: 10px; padding-top: 11px;">Very Easy</div></a></div><div class="item no-highlight" role="listitem"><div class="right floated content"><div aria-expanded="false" class="ui simple top right pointing dropdown" role="listbox" style="margin-bottom: 30px; margin-top: 0px; padding-bottom: 3px;" tabindex="0"><div aria-live="polite" class="text" role="alert"></div><i aria-hidden="true" class="ellipsis horizontal large link icon"></i><div class="menu transition" style="margin-right: -4px; margin-top: 0px; min-width: 115px;"><div aria-disabled="true" class="disabled item" role="option">Add to bookmarks</div><div aria-disabled="true" class="disabled item" role="option">Add to collection</div></div></div></div><a class="content" href="/challenge/KWoj7kWiHRqJtG6S2"><h3 class="header">Find the Remainder of Two Numbers</h3><div class="description" style="font-size: 1.05rem; min-height: 45px;">Python offers one handy operator that hands you the remainder left over from a division. Your function gets two numbers as parameters. Dividing the first parameter by the second leaves a remainder, which might be zero. Send that value back. Examples remainder(1, 3) ➞ 1 remainder(3, 4) ➞ 3 remainder(5, 5) ➞ 0 remainde …</div><div class="tags"><div class="ui small label">math</div><div class="ui small label">numbers</div></div><div style="color: rgb(45, 184, 75); float: right; font-size: 12px; padding-right: 10px; padding-top: 11px;">Very Easy</div></a></div><div class="item no-highlight" role="listitem"><div class="right floated content"><div aria-expanded="false" class="ui simple top right pointing dropdown" role="listbox" style="margin-bottom: 30px; margin-top: 0px; padding-bottom: 3px;" tabindex="0"><div aria-live="polite" class="text" role="alert"></div><i aria-hidden="true" class="ellipsis horizontal large link icon"></i><div class="menu transition" style="margin-right: -4px; margin-top: 0px; min-width: 115px;"><div aria-disabled="true" class="disabled item" role="option">Add to bookmarks</div><div aria-disabled="true" class="disabled item" role="option">Save to collection</div></div></div></div><a class="content" href="/challenge/GPmoRCZKkyNtoJMcN"><h3 class="header">Convert a String Into a Number</h3><div class="description" style="font-size: 1.05rem; min-height: 45px;">Write a function that accepts a string and gives it back to you as an integer. Examples string_int("6") ➞ 6 string_int("1000") ➞ 1000 string_int("12") ➞ 12 Notes Each value will be a whole number. Each value will be positive.</div><div class="tags"><div class="ui small label">language_fundamentals</div><div class="ui small label">numbers</div><div class="ui small label">strings</div></div><div style="color: rgb(45, 184, 75); float: right; font-size: 12px; padding-right: 10px; padding-top: 11px;">Very Easy</div></a></div><div class="item no-highlight" role="listitem"><div class="right floated content"><div aria-expanded="false" class="ui simple top right pointing dropdown" role="listbox" style="margin-bottom: 30px; margin-top: 0px; padding-bottom: 3px;" tabindex="0"><div aria-live="polite" class="text" role="alert"></div><i aria-hidden="true" class="ellipsis horizontal large link icon"></i><div class="menu transition" style="margin-right: -4px; margin-top: 0px; min-width: 115px;"><div aria-disabled="true" class="disabled item" role="option">Save to bookmarks</div><div aria-disabled="true" class="disabled item" role="option">Save to collection</div></div></div></div><a class="content" href="/challenge/xbZR26rHMNo32yz35"><h3 class="header">Work Out Age in Days</h3><div class="description" style="font-size: 1.05rem; min-height: 45px;">Write a function that accepts an age and gives back that age counted in days. Examples calc_age(65) ➞ 23725 calc_age(0) ➞ 0 calc_age(20) ➞ 7300 Notes Treat every year as 365 days for this challenge. Skip leap years and any days between the last birthday and today. Only positive integer inputs will be given.</div><div class="tags"><div class="ui small label">math</div><div class="ui small label">numbers</div></div><div style="color: rgb(45, 184, 75); float: right; font-size: 12px; padding-right: 10px; padding-top: 11px;">Very Easy</div></a></div><div class="item no-highlight" role="listitem"><div class="right floated content"><div aria-expanded="false" class="ui simple top right pointing dropdown" role="listbox" style="margin-bottom: 30px; margin-top: 0px; padding-bottom: 3px;" tabindex="0"><div aria-live="polite" class="text" role="alert"></div><i aria-hidden="true" class="ellipsis horizontal large link icon"></i><div class="menu transition" style="margin-right: -4px; margin-top: 0px; min-width: 115px;"><div aria-disabled="true" class="disabled item" role="option">Save to bookmarks</div><div aria-disabled="true" class="disabled item" role="option">Save to collection</div></div></div></div><a class="content" href="/challenge/Yx2a9B57vXRuPevGh"><h3 class="header">Work Out a Rectangle's Perimeter</h3><div class="description" style="font-size: 1.05rem; min-height: 45px;">Write a function that accepts length and width and works out the perimeter of a rectangle. Examples find_perimeter(6, 7) ➞ 26 find_perimeter(20, 10) ➞ 60 find_perimeter(2, 9) ➞ 22 Notes Remember to return your result. If you get stuck, look for hints in the Resources tab. If you're still stuck, browse answers in the Solutions tab.</div><div class="tags"><div class="ui small label">geometry</div><div class="ui small label">language_fundamentals</div><div class="ui small label">math</div><div class="ui small label">numbers</div></div><div style="color: rgb(45, 184, 75); float: right; font-size: 12px; padding-right: 10px; padding-top: 11px;">Very Easy</div></a></div><div class="item no-highlight" role="listitem"><div class="right floated content"><div aria-expanded="false" class="ui simple top right pointing dropdown" role="listbox" style="margin-bottom: 30px; margin-top: 0px; padding-bottom: 3px;" tabindex="0"><div aria-live="polite" class="text" role="alert"></div><i aria-hidden="true" class="ellipsis horizontal large link icon"></i><div class="menu transition" style="margin-right: -4px; margin-top: 0px; min-width: 115px;"><div aria-disabled="true" class="disabled item" role="option">Save to bookmarks</div><div aria-disabled="true" class="disabled item" role="option">Save to collection</div></div></div></div><a class="content" href="/challenge/v5gc8FQkDEepkqpfp"><h3 class="header">Wattage Calculator</h3><div class="description" style="font-size: 1.05rem; min-height: 45px;">Write a function that accepts voltage and current and returns the resulting power. Examples circuit_power(230, 10) ➞ 2300 circuit_power(110, 3) ➞ 330 circuit_power(480, 20) ➞ 9600 Notes You'll need a basic understanding of electrical circuits (check the Resources for details).</div><div class="tags"><div class="ui small label">math</div><div class="ui small label">numbers</div></div><div style="color: rgb(45, 184, 75); float: right; font-size: 12px; padding-right: 10px; padding-top: 11px;">Very Easy</div></a></div><div class="item no-highlight" role="listitem"><div class="right floated content"><div aria-expanded="false" class="ui simple top right pointing dropdown" role="listbox" style="margin-bottom: 30px; margin-top: 0px; padding-bottom: 3px;" tabindex="0"><div aria-live="polite" class="text" role="alert"></div><i aria-hidden="true" class="ellipsis horizontal large link icon"></i><div class="menu transition" style="margin-right: -4px; margin-top: 0px; min-width: 115px;"><div aria-disabled="true" class="disabled item" role="option">Save to bookmarks</div><div aria-disabled="true" class="disabled item" role="option">Save to collection</div></div></div></div><a class="content" href="/challenge/mDzheHpwtqyXePEBE"><h3 class="header">Total Polygon Angles</h3><div class="description" style="font-size: 1.05rem; min-height: 45px;">Given a regular polygon with n sides, return the combined total of its interior angles (measured in degrees). Examples sum_polygon(3) ➞ 180 sum_polygon(4) ➞ 360 sum_polygon(6) ➞ 720 Notes n will always be greater than 2. The formula (n - 2) x 180 yields the sum of all the angle measures in an n-sided polygon.</div><div class="tags"><div class="ui small label">functional_programming</div><div class="ui small label">math</div><div class="ui small label">numbers</div></div><div style="color: rgb(45, 184, 75); float: right; font-size: 12px; padding-right: 10px; padding-top: 11px;">Very Easy</div></a></div><div class="item no-highlight" role="listitem"><div class="right floated content"><div aria-expanded="false" class="ui simple top right pointing dropdown" role="listbox" style="margin-bottom: 30px; margin-top: 0px; padding-bottom: 3px;" tabindex="0"><div aria-live="polite" class="text" role="alert"></div><i aria-hidden="true" class="ellipsis horizontal large link icon"></i><div class="menu transition" style="margin-right: -4px; margin-top: 0px; min-width: 115px;"><div aria-disabled="true" class="disabled item" role="option">Save to bookmarks</div><div aria-disabled="true" class="disabled item" role="option">Save to collection</div></div></div></div><a class="content" href="/challenge/xWSjvoH7mEkSnqS7H"><h3 class="header">Raised to the ___ Power</h3><div class="description" style="font-size: 1.05rem; min-height: 45px;">Write a function that accepts a base number and an exponent number and returns the result of the calculation. Examples calculate_exponent(5, 5) ➞ 3125 calculate_exponent(10, 10) ➞ 10000000000 calculate_exponent(3, 3) ➞ 27 Notes Every test input will be a positive integer. Remember to return your result. If a challenge has you stuck …</div><div class="tags"><div class="ui small label">logic</div><div class="ui small label">loops</div><div class="ui small label">math</div><div class="ui small label">numbers</div></div><div style="color: rgb(45, 184, 75); float: right; font-size: 12px; padding-right: 10px; padding-top: 11px;">Very Easy</div></a></div><div class="item no-highlight" role="listitem"><div class="right floated content"><div aria-expanded="false" class="ui simple top right pointing dropdown" role="listbox" style="margin-bottom: 30px; margin-top: 0px; padding-bottom: 3px;" tabindex="0"><div aria-live="polite" class="text" role="alert"></div><i aria-hidden="true" class="ellipsis horizontal large link icon"></i><div class="menu transition" style="margin-right: -4px; margin-top: 0px; min-width: 115px;"><div aria-disabled="true" class="disabled item" role="option">Save to bookmarks</div><div aria-disabled="true" class="disabled item" role="option">Save to collection</div></div></div></div><a class="content" href="/challenge/QQp2o22huzBCkHesy"><h3 class="header">Convert a Boolean to a String</h3><div class="description" style="font-size: 1.05rem; min-height: 45px;">Write a function that receives a boolean value flag and hands it back to you as a string. Examples booltostring(True) ➞ "True" booltostring(False) ➞ "False" Notes Remember to actually return your answer! Feeling stuck on this one? Grab a hint from the Resources tab. Totally stumped? Unlock the walkthrough in the Solutions tab.</div><div class="tags"><div class="ui small label">bit_operations</div><div class="ui small label">conditions</div><div class="ui small label">logic</div><div class="ui small label">strings</div></div><div style="color: rgb(45, 184, 75); float: right; font-size: 12px; padding-right: 10px; padding-top: 11px;">Very Easy</div></a></div><div class="item no-highlight" role="listitem"><div class="right floated content"><div aria-expanded="false" class="ui simple top right pointing dropdown" role="listbox" style="margin-bottom: 30px; margin-top: 0px; padding-bottom: 3px;" tabindex="0"><div aria-live="polite" class="text" role="alert"></div><i aria-hidden="true" class="ellipsis horizontal large link icon"></i><div class="menu transition" style="margin-right: -4px; margin-top: 0px; min-width: 115px;"><div aria-disabled="true" class="disabled item" role="option">Save to bookmarks</div><div aria-disabled="true" class="disabled item" role="option">Save to collection</div></div></div></div><a class="content" href="/challenge/sLkTkfLgZYs5wejsg"><h3 class="header">Squash the Syntax Bugs</h3><div class="description" style="font-size: 1.05rem; min-height: 45px;">Head into the code tab and repair the function so every test passes — you're only hunting for syntax errors here. Study the examples below to see exactly what the output should be. Examples squared(5) ➞ 25 squared(9) ➞ 81 squared(100) ➞ 10000 Notes SLOW DOWN AND READ EACH LINE, LETTER BY LETTER! Resist the urge to overcomplicate it; this one really isn't meant to …</div><div class="tags"><div class="ui small label">algebra</div><div class="ui small label">bugs</div><div class="ui small label">language_fundamentals</div></div><div style="color: rgb(45, 184, 75); float: right; font-size: 12px; padding-right: 10px; padding-top: 11px;">Very Easy</div></a></div><div class="item no-highlight" role="listitem"><div class="right floated content"><div aria-expanded="false" class="ui simple top right pointing dropdown" role="listbox" style="margin-bottom: 30px; margin-top: 0px; padding-bottom: 3px;" tabindex="0"><div aria-live="polite" class="text" role="alert"></div><i aria-hidden="true" class="ellipsis horizontal large link icon"></i><div class="menu transition" style="margin-right: -4px; margin-top: 0px; min-width: 115px;"><div aria-disabled="true" class="disabled item" role="option">Save to bookmarks</div><div aria-disabled="true" class="disabled item" role="option">Save to collection</div></div></div></div><a class="content" href="/challenge/hEQ3rBrKrztQK8qAd"><h3 class="header">Return the First Item From a List</h3><div class="description" style="font-size: 1.05rem; min-height: 45px;">Build a function that receives a list made up entirely of numbers and gives back its very first element. Examples getfirstvalue([1, 2, 3]) ➞ 1 getfirstvalue([80, 5, 100]) ➞ 80 getfirstvalue([-500, 0, 50]) ➞ -500 Notes Remember, the opening element of any list always sits at an index of 0.</div><div class="tags"><div class="ui small label">arrays</div><div class="ui small label">language_fundamentals</div></div><div style="color: rgb(45, 184, 75); float: right; font-size: 12px; padding-right: 10px; padding-top: 11px;">Very Easy</div></a></div><div class="item no-highlight" role="listitem"><div class="right floated content"><div aria-expanded="false" class="ui simple top right pointing dropdown" role="listbox" style="margin-bottom: 30px; margin-top: 0px; padding-bottom: 3px;" tabindex="0"><div aria-live="polite" class="text" role="alert"></div><i aria-hidden="true" class="ellipsis horizontal large link icon"></i><div class="menu transition" style="margin-right: -4px; margin-top: 0px; min-width: 115px;"><div aria-disabled="true" class="disabled item" role="option">Save to bookmarks</div><div aria-disabled="true" class="disabled item" role="option">Save to collection</div></div></div></div><a class="content" href="/challenge/gwqqc5p3oiFXRJAQm"><h3 class="header">Team Points Tally</h3><div class="description" style="font-size: 1.05rem; min-height: 45px;">Write a function that receives a team's tally of wins, draws and losses and works out how many points that football side has racked up so far. wins get 3 points draws get 1 point losses get 0 points Examples football_points(3, 4, 2) ➞ 13 football_points(5, 0, 2) ➞ 15 football_points(0, 0, 1) ➞ 0 Notes Inputs will be numbers …</div><div class="tags"><div class="ui small label">algebra</div><div class="ui small label">math</div><div class="ui small label">numbers</div></div><div style="color: rgb(45, 184, 75); float: right; font-size: 12px; padding-right: 10px; padding-top: 11px;">Very Easy</div></a></div><div class="item no-highlight" role="listitem"><div class="right floated content"><div aria-expanded="false" class="ui simple top right pointing dropdown" role="listbox" style="margin-bottom: 30px; margin-top: 0px; padding-bottom: 3px;" tabindex="0"><div aria-live="polite" class="text" role="alert"></div><i aria-hidden="true" class="ellipsis horizontal large link icon"></i><div class="menu transition" style="margin-right: -4px; margin-top: 0px; min-width: 115px;"><div aria-disabled="true" class="disabled item" role="option">Save to bookmarks</div><div aria-disabled="true" class="disabled item" role="option">Save to collection</div></div></div></div><a class="content" href="/challenge/QzXtDnSZL6y4ZcEvT"><h3 class="header">Counting Farm Legs</h3><div class="description" style="font-size: 1.05rem; min-height: 45px;">For this challenge, a farmer wants your help counting up every single leg wandering around his property. He raises three kinds of animal: chickens = 2 legs cows = 4 legs pigs = 4 legs Having tallied his herd, the farmer hands you a subtotal for each species. Your job is to build a function that gives back the grand total nu …</div><div class="tags"><div class="ui small label">algorithms</div><div class="ui small label">language_fundamentals</div><div class="ui small label">math</div></div><div style="color: rgb(45, 184, 75); float: right; font-size: 12px; padding-right: 10px; padding-top: 11px;">Very Easy</div></a></div></div><button class="ui fluid button" role="button"><span>SHOW MORE</span></button></div></div></div></div></main><footer id="Footer"><div class="ui container no-highlight" style="margin: 0px; padding: 0px;"><div class="ui fitted divider" style="margin-bottom: 20px;"></div><div class="ui horizontal right floated list" role="list"><a class="item fancy-link" href="/contact" role="listitem"><span>Contact</span></a><a class="item fancy-link" href="/_404.html" role="listitem" target="_blank"><span>Blog</span></a><a class="item fancy-link" href="/about" role="listitem"><span>About</span></a></div><div class="ui horizontal left floated list" role="list"><div class="disabled item" role="listitem">© 2021 Praxide, Inc</div><a class="item fancy-link" href="/docs/terms" role="listitem"><span>Terms</span></a><a class="item fancy-link" href="/docs/privacy" role="listitem"><span>Privacy</span></a><a class="item fancy-link" href="/roadmap" role="listitem"><span>Roadmap</span></a><a class="item fancy-link" href="/affiliates" role="listitem"><span>Affiliates</span></a><a class="item fancy-link" href="/help" role="listitem"><span>Help</span></a></div><div aria-expanded="false" class="ui button compact labeled upward dropdown icon" role="listbox" style="bottom: 0px; margin-bottom: 7px; min-width: 122px; position: fixed; right: 4px;" tabindex="0"><div aria-live="polite" class="text" role="alert">English</div><i aria-hidden="true" class="caret up icon"></i><div class="menu transition"><div aria-checked="true" aria-selected="true" class="active selected item" role="option" style="pointer-events: all;">English</div><div aria-checked="false" aria-selected="false" class="item" role="option" style="pointer-events: all;">Español</div><div aria-checked="false" aria-selected="false" class="item" role="option" style="pointer-events: all;">Français</div><div aria-checked="false" aria-selected="false" class="item" role="option" style="pointer-events: all;">Deutsch</div><div aria-checked="false" aria-selected="false" class="item" role="option" style="pointer-events: all;">Português</div><div aria-checked="false" aria-selected="false" class="item" role="option" style="pointer-events: all;">日本語</div><div aria-checked="false" aria-selected="false" class="item" role="option" style="pointer-events: all;">中文</div><div aria-checked="false" aria-selected="false" class="item" role="option" style="pointer-events: all;">Pусский</div></div></div></div></footer><div class="s-alert-wrapper"></div></div></div><script src="/cr-site.js"></script>
</body></html>