def collatz(number):
        if number % 2 == 0:
            return number // 2
        elif number % 2 == 1:
            return 3 * number + 1
print("Please type a number: ")
userInt = int(input())
newInt = collatz(userInt)
while collatz(newInt) > 1:
    print(collatz(userInt))
    collatz(newInt)
    print(collatz(newInt))