<!doctype html>
<html lang="en">
<head>
<meta charset="utf-8">
<script src="a.js"></script>
<script src="b.js"></script>
<script src="index.js"></script>
</head>
<body onload="load()"></body>
<p id="pSum"></p>
<p id="pMultiply"></p>
</html>
