 <span class="special">=</span> <span class="identifier">mpi</span><span class="special">.</span><span class="identifier">world</span><span class="special">.</span><span class="identifier">recv</span><span class="special">(</span><span class="number">1</span><span class="special">,</span> <span class="number">1</span><span class="special">)</span>
  <span class="keyword">print</span> <span class="identifier">msg</span><span class="special">,</span><span class="string">'!'</span>
<span class="keyword">else</