#!/usr/bin/perl

;@rof=qw(4 13 -1 9);@rof=reverse(@rof);
;sub gg{eval$_[0]};$dro='A';$q=''."".';
;for@rof((++ord$dro+_$)rhc)tnirp;(q$)g;
;';$q||=$gg;sub g{return reverse$_[0]};
;$q=~s)\()\"\')g;$s||=$q;$s=~s~\)~\(~g;
;$g=$s;$g=~s^\"\'^\)^g;$g=g($g);gg($g);