span class="n">count</span> <span class="o">=</span> <span class="mi">0</span>
        <span class="k">for</span> <span class="n">j</span> <span class="ow">in</span> <span class="n">c</span><span class="p">:</span>
            <span class="n">j</span> <span class="o">=</span> <span class="nb">list</span><span class="p">(</span><span class="n">j</span><span class="p">)</span>
            <span class="k">for</span> <span class="n">i</span> <span class="ow">in</span> <span class="bp">self</span><span class="o"