also, you use this nice short-ification:
chomp(my $answer=<STDIN>);
in one place, but not in others. so (using
suaveant's good suggestion for an additional subroutine to handle a repeated task), it would look like:
chomp ( $in=<STDIN> );
since most of the time when you get user input you're going to want to remove the newline, i like doing it all on one line.
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