ss="c">!</span>
<span class="c">!       clean-up loop</span>
<span class="c">!</span>
<span class="w">         </span><span class="n">m</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="nb">mod</span><span class="p">(</span><span class="n">n</span><span class="p">,</span><span class="mi">3</span><span class="p">)</span><span class="w"></span>
<span class="w">         </span><span class="k">if</span><span class="w"> </span><span class="p">(</span><span class="n">m</sp