#! /usr/bin/perl -w

use strict;

 sub godel{my ($f,$a,$l)=@_;return $a  unless @$l;my$x=shift @$l;&$f(
$x,&godel($f,$a,$l));}my @M=split '',  "Just another ";my @I =split '', 
"Perl hacker,"; my                                  @U =reverse @M; sub
escher{my ($l,$m)                                    =@_;sub{$l= pop @U
if @U;$l.&$m();} }                                  unshift@U, split ''
,"pool egnarts";my$bach=&godel(\&escher,&godel(\&escher,sub{return"\n"}
 ,\@I),\@M);print &$bach(); ### Inspired by Douglas Hofstadter's _GEB_