class="o">*</span> <span class="n">q</span><span class="p">[</span><span class="s2">&quot;e&quot;</span><span class="p">]</span> <span class="o">*</span> <span class="n">r_s</span><span class="p">)</span>
                        <span class="o">*</span> <span class="p">(</span>
                            <span class="n">q</span><span class="p">[</span><span class="s2">&quot;b&quot;</span><span class="p">]</span> <span class="o">*</span> <span class="n">r_s</span>
                            <span class="o"