ss="n">prefixLen</span><span class="p">):</span>
            <span class="n">res</span> <span class="o">+=</span> <span class="nb">str</span><span class="p">(</span><span class="n">prefix</span><span class="p">[</span><span class="n">i</span><span class="p">])</span> <span class="o">+</span>  <span class="s2">&quot;</span><span class="se">\t</span><span class="s2">&quot;</span>
        <span class="n">res</span> <span class="o">+=</span> <span class="nb">str</span><span class="p">(</span><span class="n">ite