#!/usr/bin/perl -sire

package a;sub used{$_[1]}sub was{$_[-1].=~~reverse($^I).',';;print
$_[1]}package main;sub his::parsing{' tsuJ'}sub when::hammer{~~reverse
$_[1]}sub oft::he{my($self,$ he)=@_;my$ c=join'',sort qw(t o n);$ he=~
s/(.*)/\1a${c}h$^I /x&&$he}sub dim::incredibly{$_[-1].'P'}sub was::light{$d=$_
[-1].$ ^I.chr 108}sub whose::jim{$J=$ _[1];$J=~s/(r)(e)/\2\1/g;$J } sub
named::gentleman{$e.=$ _ for qw*a c k*;$_[-1].' h'.$e}sub once::there{}

there once was a gentleman named jim
whose light was incredibly dim
he oft used a hammer
when parsing his grammar
and never the wiser was him