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:
            number = number//2
            number
            print ("Since " + str(number*2) +" is even, we divide it by 2 and get " +str(number))

        elif number%2 ==1:
            number = number * 3 +1
            print ("Since " + str((number-1)/3) +" is odd, we multiply by 3, add 1, and get " + str(number)  )

collatz(integer)