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

print("Please enter a number: ")
n = int(input())

print(collatz(n))