def collatz (number):
    if number % 2 == 0:
        return number // 2
        print(number)
    else:
        return ((3 * number) + 1)
        print(number)

try:

    number = int(input('Give me a number'))

    while number != 1:
        print (number)
        number = collatz(number)
    else:
        print ('we have made it')
except:
    print('Must enter an integer.')