use strict;
use warnings;

for (-4, 1, 7, 12, 89, 54, 13, 104) {
    if ($_ < 1 || $_ > 64) { print "$_ outside.\n" }

    elsif ($_ <= 8) { print "$_ 1-8\n"; }
    elsif ($_ <= 16) { print "$_ 9-16\n"; }
    elsif ($_ <= 32) { print "$_ 17-32\n"; }
    elsif ($_ <= 64) { print "$_ 33-64\n"; }
}