an><span class="n">starts</span><span class="p">,</span> <span class="n">ends</span><span class="p">),</span> <span class="mi">1</span><span class="p">):</span>
        <span class="n">gap_len</span> <span class="o">=</span> <span class="n">en</span> <span class="o">-</span> <span class="n">st</span> <span class="o">+</span> <span class="mi">1</span>
        <span class="nb">print</span><span class="p">(</span><span class="sa">f</span><span class="s2">&quot;</span><span class="se">\n</span><span class="si">