<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<title>Document</title>
</head>
<body>
<script type="text/javascript">
var a=prompt();
var b=prompt();
var c=Number(a);
for(var i=0;i<c/2;i++)
{
for(var j=0;j<c;j++)
{
document.write("a");
}
document.write("<br />");
}
</script>
</body>
</html>
