note Abigail Well, your "agricultural" regex could be written far much simpler, in a way even that doesn't hardcode the number of digits: <code>! /(\d).*\1/</code> <p> I'm a bit surprised to see an idiom in your program that another solution also used: <code> foreach (@array) { push @other, $_ if some_condition; } </code> <p> Of course, that's much clearer, and more efficiently, written as: <code> @other = grep {some_condition} @array; </code> <p> -- Abigail 84175 84515