problem_set_id,start_at,end_at
1082627675916009472,2019-01-08 21:18:00,2019-01-09 21:18:00
1100279936155463680,2019-03-11 08:19:00,2019-03-13 14:19:00
1106891608596889600,2019-03-16 12:14:00,2019-03-20 12:14:00
1106896960495239168,2019-03-16 20:14:00,2019-03-20 15:14:00
1107185762577113088,2019-03-22 13:44:00,2019-03-26 15:44:00
1111430169561579520,2019-03-29 13:48:00,2019-04-01 08:48:00
1115434252019384320,2019-04-12 10:03:00,2019-04-17 10:03:00
1115434422463315968,2019-04-15 10:03:00,2019-04-25 10:03:00
1115434561663877120,2019-04-19 10:03:00,2019-04-24 10:03:00
1115444923146649600,2019-04-26 10:03:00,2019-05-01 10:03:00
1115451086265335808,2019-04-30 10:03:00,2019-05-05 10:03:00
1115456707454779392,2019-05-05 11:28:00,2019-05-05 19:50:00
1115507945303130112,2019-05-10 14:56:00,2019-06-22 21:50:00
1115516873948741632,2019-05-16 14:56:00,2019-06-22 21:50:00
1115543651413082112,2019-05-21 14:56:00,2019-05-28 14:56:00
1115545178450116608,2019-06-01 14:56:00,2019-06-09 21:09:00
1129742112233443328,2019-05-18 21:45:00,2019-05-20 21:33:00
1132605698123264000,2019-05-26 19:30:00,2019-05-28 21:00:00
1132973627801104384,2019-05-27 20:50:00,2019-05-29 20:50:00
1227149969487712256,2020-02-19 12:00:00,2020-02-23 12:00:00
1227150630187061248,2020-02-19 12:00:00,2020-03-05 12:40:00
1230064233168916480,2020-02-19 17:38:00,2020-02-23 19:38:00
1230065244008763392,2020-02-19 17:42:00,2020-03-05 19:42:00
1236132667536474112,2020-03-07 11:32:00,2020-03-16 13:32:00
1236151324769550336,2020-03-07 12:46:00,2020-03-19 14:46:00
1240853984609443840,2020-03-20 12:13:00,2020-03-25 14:13:00
1245194630577668096,2020-04-01 11:41:00,2020-04-07 13:41:00
1248456113897779200,2020-04-10 11:41:00,2020-04-15 13:41:00
1250404351345573888,2020-04-15 20:43:00,2020-04-20 22:43:00
1255342391923068928,2020-04-29 11:45:00,2020-05-31 13:45:00
1257880908494622720,2020-05-06 11:52:00,2020-05-11 13:52:00
1257882474492555264,2020-05-06 11:58:00,2020-05-30 13:58:00
1263076662868000768,2020-05-20 19:58:00,2020-05-30 21:58:00
1266213054301159424,2020-05-29 11:41:00,2020-06-05 13:41:00
1268759480340135936,2020-06-05 12:19:00,2020-06-09 14:19:00
1269921687820124160,2020-06-08 17:17:00,2020-06-08 19:17:00
1269985280335732736,2020-06-09 10:30:00,2020-06-09 23:30:00
1270139376246112256,2020-06-09 08:00:00,2020-06-09 22:41:00
1270564134540468224,2020-06-10 11:50:00,2020-06-17 12:14:00
1296251775237980160,2020-08-25 09:00:00,2020-08-25 09:40:00
1326709457650601984,2020-11-14 08:30:00,2020-11-14 09:00:00
1326727905776652288,2020-11-14 09:01:00,2020-11-14 09:31:00
1363733803850629120,2021-02-25 13:30:00,2021-02-25 13:50:00
1363763102322360320,2021-02-25 13:52:00,2021-02-25 15:30:00
1367687598281330688,2021-03-05 12:04:00,2021-03-09 14:04:00
1372832209203785728,2021-03-19 16:47:00,2021-03-24 18:47:00
1376834417411604480,2021-03-30 17:51:00,2021-04-04 19:51:00
1378164783909126144,2021-04-06 09:57:00,2021-04-11 11:57:00
1378166193149214720,2021-04-13 10:02:00,2021-04-27 12:02:00
1378166389526446080,2021-04-20 10:03:00,2021-05-03 12:03:00
1378166558301044736,2021-04-27 10:04:00,2021-05-17 12:04:00
1378166745891291136,2021-05-04 10:05:00,2021-05-23 12:05:00
1378166914586198016,2021-05-11 10:05:00,2021-06-01 12:05:00
1378167098770669568,2021-05-18 10:06:00,2021-06-13 12:06:00
1378167242383638528,2021-05-25 10:07:00,2021-06-18 12:07:00
1378167443416711168,2021-05-25 10:07:00,2021-06-20 12:07:00
1378167606478667776,2021-05-31 10:08:00,2021-07-23 12:08:00
1378167826109202432,2021-06-08 10:09:00,2021-07-31 12:09:00
1397306601474613248,2021-05-27 14:00:00,2021-05-27 15:40:00
1397535586620063744,2021-05-28 03:00:00,2021-05-28 03:01:00
1397544987263287296,2021-05-28 03:00:00,2021-05-28 03:01:00
1405767380315275264,2021-06-18 13:59:00,2021-06-26 15:59:00
1405800947267252224,2021-06-18 16:13:00,2021-06-18 18:13:00
1406166702253060096,2021-06-19 16:26:00,2021-06-19 18:26:00
1420679984359940096,2021-07-29 17:37:00,2022-07-01 21:53:00
1426877259969638400,2021-08-23 14:00:00,2021-08-23 14:15:00
1427106424249643008,2021-08-26 09:00:00,2021-08-26 11:00:00
1437974003044597760,2021-09-15 11:00:00,2021-09-22 23:59:00
1447018479969402880,2021-10-10 09:55:00,2021-10-11 12:00:00
1447105192733474816,2021-10-10 15:41:00,2021-10-10 17:41:00
1447110949830950912,2021-10-10 16:04:00,2021-11-01 18:04:00
1447119032145707008,2021-10-10 16:36:00,2021-10-10 18:36:00
1447120985156308992,2021-10-12 15:50:00,2021-10-12 17:20:00
1453226066600726528,2021-10-27 13:03:00,2021-10-27 15:03:00
1457929371419164672,2021-11-10 08:00:00,2021-11-15 12:32:00
1460457527082860544,2021-11-17 10:00:00,2021-11-22 14:00:00
1460491927678578688,2021-11-18 14:15:00,2021-12-05 16:15:00
1465715323826311168,2021-12-02 14:10:00,2021-12-02 16:10:00
1466119055287783424,,
1501746474307592192,2022-03-10 10:26:00,2022-03-17 12:26:00
1501827059172548608,2022-03-10 16:00:00,2022-03-17 23:59:00
1506811062253727744,2022-03-24 10:00:00,2022-03-30 23:59:00
1509344976482955264,2022-03-31 10:00:00,2022-04-06 23:59:00
1509346523778220032,2022-03-31 10:00:00,2022-04-06 23:59:00
1511678375629258752,2022-04-07 12:00:00,2022-04-13 23:59:00
1513767624454610944,2022-04-12 14:34:00,2022-04-12 16:34:00
1523245068243333120,2022-05-11 19:30:00,2022-05-11 20:00:00
1523612220397871104,2022-05-11 19:30:00,2022-05-11 20:00:00
1536511318583664640,2022-06-14 08:48:00,2022-06-14 10:48:00
1536904042017181696,2022-06-15 10:49:00,2022-06-15 12:49:00
1540501317498953728,,
1540849456416276480,2022-06-26 08:32:00,2022-06-26 09:40:00
1561662145170399232,2022-08-22 18:30:00,2022-09-30 20:30:00
1563120899632017408,2022-08-26 19:07:00,2022-08-28 21:07:00
1566970646767017984,,
1580014184917893120,2022-10-12 09:54:00,2022-10-27 22:54:00
1580947669711056896,2022-10-14 23:43:00,2022-10-15 01:43:00
1581643570687508480,,
1583832714327244800,2016-01-01 08:00:00,2038-01-18 08:00:00
1591429667465318400,2022-11-12 21:55:00,2022-11-13 22:00:00
1103580732800880640,2019-03-07 15:40:00,2019-03-07 17:19:00
1114849106169905152,2019-04-08 11:30:00,2019-04-10 19:16:00
1115455124184711168,2019-05-05 10:03:00,2019-05-07 10:03:00
1127901575585832960,2019-05-13 20:00:00,2019-06-12 19:40:00
1130430781701312512,2019-05-20 20:10:00,2019-05-22 21:00:00
1132989040891031552,2019-05-27 20:36:00,2020-05-22 20:36:00
1132996175045619712,2019-05-27 21:05:00,2020-05-16 21:05:00
1223549234623696896,2016-01-01 08:00:00,2038-01-18 08:00:00
1269099681558126592,2020-06-06 10:50:00,2020-06-06 12:50:00
1269401912891236352,2020-06-07 06:51:00,2020-06-08 17:00:00
1269920023046340608,2020-06-08 17:11:00,2020-06-08 19:11:00
1269933133979279360,2020-06-08 18:02:00,2020-06-09 20:02:00
1270325840049266688,2020-06-09 20:03:00,2020-06-10 22:03:00
1271005010588778496,2020-06-11 18:50:00,2020-06-11 20:50:00
1271635817204473856,2020-06-14 11:00:00,2020-06-17 11:20:00
1272079893758394368,2020-06-14 16:13:00,2020-06-14 23:13:00
1272346570756636672,2020-06-15 10:45:00,2020-06-15 17:03:00
1272388989212606464,2020-06-15 12:41:00,2020-06-15 12:50:00
1272424232695029760,2020-06-15 15:01:00,2020-06-15 15:07:00
1272450095373271040,2020-06-15 17:20:00,2020-06-15 19:14:00
1272675691059666944,2020-06-16 07:41:00,2020-06-16 07:50:00
1272755393304641536,2020-06-16 15:20:00,2020-06-17 13:15:00
1272759250608898048,2020-06-16 15:25:00,2020-06-17 23:59:00
1272763622042550272,2020-06-16 13:30:00,2020-06-16 17:30:00
1272813006620901376,2020-06-16 18:20:00,2020-06-16 18:42:00
1273093096877506560,2020-06-17 11:20:00,2020-06-17 11:25:00
1273096220308594688,2020-06-19 09:30:00,2020-06-19 10:10:00
1273103919876333568,2020-06-19 10:11:00,2020-06-19 10:36:00
1273196260087750656,2020-06-17 18:09:00,2020-06-17 18:17:00
1273197850685259776,2020-06-17 18:15:00,2020-06-17 18:59:00
1273417230799003648,2020-06-18 08:47:00,2020-06-18 09:47:00
1273420953105391616,2020-06-18 09:02:00,2020-06-18 09:22:00
1273429300470792192,2020-06-18 09:33:00,2020-06-18 10:07:00
1273539112277819392,2020-06-18 16:52:00,2020-06-18 17:33:00
1273549979157454848,2020-06-18 17:35:00,2020-06-18 17:40:00
1296262487100325888,2020-08-25 09:41:00,2020-08-25 10:06:00
1296646539045326848,2020-08-21 11:10:00,2020-08-24 23:59:00
1333666468222259200,2020-12-01 14:56:00,2020-12-01 16:56:00
1335064426405613568,2020-12-05 18:30:00,2020-12-31 23:59:00
1362338033024991232,2021-02-18 17:00:00,2021-02-23 23:00:00
1363351017885106176,2021-02-21 13:00:00,2021-02-25 23:00:00
1369904982123667456,2021-03-12 14:55:00,2021-03-19 16:46:00
1378217245718380544,2021-04-03 13:30:00,2021-04-14 21:00:00
1396471815622090752,2021-05-23 22:46:00,2021-05-24 00:33:00
1397131585369874432,2021-05-26 00:00:00,2021-05-26 23:59:00
1399786352169209856,2021-06-02 12:00:00,2021-06-03 12:00:00
1432253258857906176,2021-09-04 20:00:00,2021-09-12 22:00:00
1441607440851451904,2021-11-30 11:35:00,2021-11-30 13:35:00
1449230693582036992,,
1451090917922938880,,
1451543443638042624,2021-10-23 08:00:00,2021-10-24 07:59:00
1451853700688105472,2021-10-31 18:45:00,2021-10-31 21:25:00
1452263764695658496,2021-10-25 00:00:00,2021-10-25 23:59:00
1452264742329200640,2021-10-28 00:00:00,2021-10-28 23:59:00
1452920325508067328,2021-10-27 18:50:00,2021-10-27 20:30:00
1455715026966585344,2021-11-03 10:20:00,2021-11-03 11:50:00
1462425602794680320,2021-11-22 13:00:00,2021-11-23 12:59:00
1465616549120544768,2021-12-01 00:00:00,2021-12-01 23:59:00
1495575668283748352,,
1499635992834785280,2022-03-04 15:00:00,2022-03-10 23:59:00
1501131236998823936,2022-03-08 17:42:00,2022-03-08 19:42:00
1504284888965722112,2022-03-17 11:00:00,2022-03-23 23:59:00
1514425309670367232,2022-04-14 12:00:00,2022-04-20 23:59:00
1516680621942546432,2022-04-21 12:00:00,2022-05-11 23:59:00
1531289610662428672,2022-05-31 12:00:00,2022-06-01 12:00:00
1539895435895492608,2022-06-23 16:57:00,2022-06-25 18:57:00
1540676665888989184,2022-06-25 20:50:00,2022-06-25 21:00:00
1557633815597076480,2022-08-11 15:43:00,2022-08-18 17:43:00
1558616616370753536,2022-08-14 08:48:00,2022-08-14 10:48:00
1578765563408904192,2022-10-12 12:00:00,2022-10-13 11:59:00
1580888777396314112,2022-10-14 19:50:00,2022-10-14 21:50:00
1582553031249756160,,
1582564914442788864,2022-10-20 13:00:00,2022-10-20 13:45:00
1582914288859561984,2022-10-20 12:00:00,2022-10-20 12:15:00
1584460825108553728,2016-01-01 08:00:00,2038-01-18 08:00:00