      Things to take notice of:
        </p>
<div class="itemizedlist"><ul class="itemizedlist" style="list-style-type: disc; ">
<li class="listitem">
              The grammar and start rule signature is <code class="computeroutput"><span class="keyword">unsigned</span><span class="special">()</span></code>. It has a synthesized attribute (return
              value) of type <code class="computeroutput"><span class="keyword">unsigned</span></code>
              with no inherited attributes (arguments).
   