span class="keyword">int</span> <span class="identifier">i</span> <span class="special">=</span> <span class="number">0</span><span class="special">;</span> <span class="identifier">i</span> <span class="special">&lt;</span> <span class="special">(</span><span class="identifier">depth</span><span class="special">*</span><span class="number">4</span><span class="special">);</span> <span class="special">++</span><span class="identifier">i</span><span class="special">)</span> <span class="comment">// indent to