def collatzCount(number):
    for n in range (1,number):
        collatzConjecture(n)
        print("\n")

def collatzConjecture(n):
    print(n, end = ' ')
    if n is 1:
        return 1
    else:
        if (n%2):
            return collatzConjecture(int((n*3)+1))
        else:
            return collatzConjecture(int(n/2))
        raise AssertionError

#main
for i in range (1,3):
    print("")

collatzCount(10000)