Ah, how perfect, Perl sounds like the right choice for the job! I hope you have fun writing the program and if you are stuck on a particular issue feel free to ask us. In the meantime please read How do I post a question effectively?.

That being said, did you expect us to write the program for you or just lead you in the right direction? (Your answer can be other choices, those two were there to just lead you in the right direction.)