import random
import time

numbers = list(range(20))

while True:
    num = random.choice(numbers)
    if num in [0,2, 4, 6, 8,10,12,14,16,18]:
        print(num)
        print("punishment given")
        numbers.remove(num)
    else:
        
        print(num)
        print("reward given")
        numbers.append(num)
    time.sleep(1)
    if not numbers:
        numbers = list(range(20))