<span class="o">//</span><span class="mi">2</span><span class="p">]</span><span class="o">-</span><span class="mi">2</span><span class="p">,</span><span class="n">high</span><span class="o">=</span><span class="n">rp_pos</span><span class="p">[(</span><span class="nb">chr</span><span class="o">-</span><span class="mi">1</span><span class="p">)</span><span class="o">//</span><span class="mi">2</span><span class="p">]</span><span class="o">+</span><span class="mi">2</span><span class="p">))</span>
        <sp