Yes, you have given us the code and a specification. What we would like to know is exactly what is the problem you are having with the code you have posted? What is it doing that you think is wrong? We do not know your problem unless you state it.

I could run your code and see what problems I encounter, but I should not HAVE to do that. You should provide an explanation of your problem. If you do provide a good explanation of the problem you are having you will probably get several good responses.