You have a *lot* of syntax issues that you'd see if you put

use warnings;
use strict;
[download]

at the top of your script. Also, when I do correct the errors, I'm not sure what to expect as output. Where are @prdct and @prdct1 defined?

Please put your code in <code></code> tags as Laurent_R stated, use proper indentation, show us what the two arrays I mentioned above should have in them, and what exactly you expect as output.

-stevieb