/span> <span class="o">==</span> <span class="s1">&#39;V&#39;</span><span class="p">:</span>
                <span class="k">for</span> <span class="n">v</span> <span class="ow">in</span> <span class="n">rowLabels</span><span class="p">:</span>
                    <span class="k">for</span> <span class="n">u</span> <span class="ow">in</span> <span class="n">rowLabels</span><span class="p">:</span>
                        <span class="k">if</span> <span class="n">v</span> <span class="o">!=</span> <span clas