#!/usr/bin/perl
# Copyright 2002-2016, Paul Johnson (paul@pjcj.net)
# This software is free. It is licensed under the same terms as Perl itself.
# The latest version of this software should be available from my homepage:
# http://www.pjcj.net
use strict;
use warnings;
my $i = 1;
my $j = 0;
for my $y (0, 1, 1, 1) {
for my $z (0, 0, 1) {
my $x = $y ^ $z;
$x = ($y xor $z);
my $p = ($i xor $y);
$p = ($j xor $y);
$p ^= $y;
}
}