s="ow">in</span> <span class="n">zipped</span> <span class="k">if</span> <span class="n">x</span> <span class="ow">in</span> <span class="n">strToInt</span><span class="p">]</span>
            <span class="n">transaction</span> <span class="o">=</span> <span class="nb">sorted</span><span class="p">(</span><span class="n">transaction</span><span class="p">,</span> <span class="n">key</span><span class="o">=</span><span class="k">lambda</span> <span class="n">x</span><span class="p">:</span> <span class="n">x