print("Hello! Today I will show you what a collatz is. Please insert a number!")
integer=int(input())
def collatz(number):
    while number != 1:
        if number % 2 == 0:
            big = number//2
            print ("Since " + str(number) +" is even, we divide it by 2 and get " + str(big))
            return int(big)
        elif number%2 ==1:
            small = number * 3 +1
            print ("Since" + str(number) +"is odd, we multiply by 3, add 1, and get" + str(small))
            return int(small)
collatz(integer)