<script>
    setTimeout(function() { alert('setTimeout-1') }, 0);
    setTimeout(function() { alert('setTimeout-2') }, 0);
    setTimeout(function() { alert('setTimeout-3') }, 0);
</script>
<p>paragraph-1</p>
<script>
    alert('one');
</script>
<p>paragraph-2</p>
<script>
    alert('two');
</script>
<p>paragraph-3</p>
<script>
    alert('three');
</script>
<p>paragraph-4</p>
<script>
    alert('four');
</script>