<?php
define('__FLAG__','3xZG{dgznclXAwFVCUHPMWFViZBDSsltxKdrvFBVYHSr1}');
function stypr_crypt($i){$_1 = $_2 = $_3 = Array(); $_4 =Array('?','(','@', ';', '$','#', ']', '&', '*'); range(range($_4,'a','z'),'A','Z');}
if(__FLAG__ === stypr_crypt(stypr_crypt(stypr_crypt($_GET['flag']))))
echo 'Correct!';
else
echo 'Incorrect..';
?>
preferences:
52.16 ms | 402 KiB | 5 Q