Write a script that can solve this compound interest problem

Suppose that you have a $$20,000$ loan at $6$ percent annual interest compounded monthly. You can

afford to pay $$200/$month toward this loan. How long will it take until the loan is paid off?

Hint: A While Loop will be useful. The loop will need to simultaneously keep track of how much you pay

each year and how much the principle balance increases each year. The condition that stops the loop

will be when the amount paid is greater than the principle balance. The Compound Interest example

above will be useful.