r</span> <span class="o">=</span> <span class="n">_Pair</span><span class="p">()</span>
                <span class="n">pair</span><span class="o">.</span><span class="n">item</span> <span class="o">=</span> <span class="n">items</span><span class="p">[</span><span class="n">i</span><span class="p">]</span>
                <span class="n">item</span> <span class="o">=</span> <span class="n">pair</span><span class="o">.</span><span class="n">item</span>
                <span class="n">pair</span><span class=