<!DOCTYPE html>
<html>
<head>
<title>JS</title>
<style>
b {
color: blue;
padding: 0 3px;
}
</style>
<script>
for (var a = 1; a <= 100; a++) {
if (a != 50) {
document.write('<b>' + a + '</b>');
}
}
</script>
</head>
<body></body>
</html>