enumerate</span><span class="p">(</span><span class="n">centers</span><span class="p">):</span>
                <span class="k">for</span> <span class="n">i_comp</span> <span class="ow">in</span> <span class="nb">range</span><span class="p">(</span><span class="mi">3</span><span class="p">):</span>
                    <span class="k">for</span> <span class="n">i_stencil</span> <span class="ow">in</span> <span class="nb">range</span><span class="p">(</span><span class="mi">2</span><span class="p">):</span>
 