#!/usr/bin/perl -w
use strict;print(join('',reverse(split('',join('',
reverse(reverse(reverse(split('',pack('b*',&{sub{;
$;=pack('h*',pack('b*',<DATA>)) ;$;=~s/\r|\n//gis;
$;=~s/(\{{4}|\}{4})/$1 eq'{{{{'?'12':'21'/eg;$_=$;
;;;(0);s/(\[\[\]\]\[\]\[\[\]\[\[\]\]\]\]\]|\&\&)/#
substr($1,1,1)eq'['?'13': '010'/egx;s/\\\/([^\\]+)
\\\//'1'x$1/xeg;$;=$_ ;;;(0);;;for($$=6;$$>1;$$--)
{push@_,$;;push@_,$;&&$;||$;+17;$;=~s/($$)/'0'x $1
/exg;}return$;;}})))) )))))."\n");$_=(17);exit(0);
__DATA__
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[download]

-- 
arneb@emergency:~ > perl -MO=Deparse -e "(0); #Confusing perl..." 2> /dev/null
'???';
arneb@emergency:~ >