>}</span>
  <span class="keyword">bool</span> <span class="identifier">op1</span><span class="special">(</span><span class="keyword">int</span><span class="special">)</span> <span class="special">{</span> <span class="keyword">return</span> <span class="identifier">level</span> <span class="special">&lt;</span> <span class="number">2</span><span class="special">;</span> <span class="special">}</span>
  <span class="keyword">bool</span> <span class="identifier">op2</span><span class="special">(</span><span c