pan class="mf">60.0</span>
    <span class="nb">print</span><span class="p">(</span><span class="n">elapsed</span><span class="p">)</span>
    <span class="nb">print</span><span class="p">((</span><span class="n">np</span><span class="o">.</span><span class="n">diff</span><span class="p">(</span><span class="n">elapsed</span><span class="p">)</span> <span class="o">+</span> <span class="p">[</span><span class="mi">0</span><span class="p">]))</span>
    <span class="n">df</span><span class="p">[</span><span 