
<?php
            include "flag.php";
            $source = show_source("index.php", true);
            echo("<div>");
            print $source;
            echo("</div>");

            if (isset($_GET['shell']) && isset($_GET['pwn'])) {
                if(is_array($_GET['shell']) || is_array($_GET['pwn'])){
                    die("<h1>Try Harder! </h1>");
        }
                if ($_GET['shell'] !== $_GET['pwn'] && hash("md5", $_GET['shell']) === hash("md5", $_GET['pwn'])) {
                    echo("<h1>$flag</h1>");
                } else {
                    echo("<h1>Try harder! </h1>");
                }
            } else {
                echo("<h1>Get the flag!</h1>");
            }
        ?>