This works. 
#!/usr/bin/perl -T -w

use strict;

#OK I could have packed this and eval'd it but I'm lazy.
#
# Useless poem code follows.

my @poem = split //, "The sky rolled over the hill to reveal a tower, 
+bright and blue, turned to mirror reflecting you"; my @reverse = (33,
+7,28,0,20,5,16,84,17,10,0,10,0,22,0,29,25,23,0,73,25,72,10,84,72,13,9
+,2,82,1,27,0,94,0,3,9,3,76,68,15,65,84,27,31,2,27,94,66,66,94,27,2,31
+,27,84,65,15,68,76,3,9,3,0,94,0,27,1,82,2,9,13,72,84,10,72,25,73,0,23
+,25,29,0,22,0,10,0,10,17,84,16,5,20,0,28,7,33); my @author = (107,104
+,116,110,52,64,102,49,99,99,116,126); my $temp = $#author; my $counte
+r=$#poem; my $anticounter=0;

while ($counter>=0)
{
    print "1>\t";
    print $poem[$counter]^chr($reverse[$counter]);
    print "\n2>";
    print chr($reverse[$counter])^$poem[$anticounter];
    print "\n";
    $counter--;
    $anticounter++;
}

$counter=$counter^$counter;

print "\nBy ";

while ($counter<=$temp) {
    print chr($author[$counter]^$reverse[$counter]);
    $counter++;
}

print "\n";

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In reply to The blue tower by Anonymous Monk

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