         <span class="n">nCand</span> <span class="o">=</span> <span class="n">cands</span><span class="p">[</span><span class="n">i</span><span class="p">]</span> <span class="o">+</span> <span class="nb">tuple</span><span class="p">([</span><span class="n">cands</span><span class="p">[</span><span class="n">j</span><span class="p">][</span><span class="o">-</span><span class="mi">1</span><span class="p">]])</span>
                    <span class="n">newCands</span><span class="o">.</span><span class="n">a