这里是一个编程游戏，有一关过不了，请指教
https://paiza.jp/poh/ando/challenge/5eb06c7e/ando16
这是一个编程游戏网站，有人可以过“眼带”吗？就是眼睛那行最后一个。
虽然是日文的，但是觉得问题还是比较好理解的。
我是过了代码调试，去到最终测试第一个CASE就出错了。
回复讨论(解决方案)
fgets(STDIN);
fgets(STDIN);
$h = explode(' ', trim(fgets(STDIN)));
fgets(STDIN);
$o = array_diff(explode(' ', trim(fgets(STDIN))), $h);
sort($o);
echo empty($o) ? 'None' : implode(' ', $o);
?>
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