Write a sub that implements the game "3X+1". It is a very simple game. You start by asking the user to input a positive integer N.

Then, use a loop to test if N is odd or even. If N is odd, then set N= N*3+1. If N is even, then set N= N/2. Repeat this loop until you get N = 1.

You need keep track of how many loops you went through before you get to N = 1.

Report the results (the steps and the corresponding N values, N= 1-20) in a worksheet.

An example of properly working code is as follows:

N=1 N=2 N=3

Steps      0     1

Path of N        1     2     3

1 10 5 16 8 4 2