>range</span><span class="p">(</span><span class="nb">len</span><span class="p">(</span><span class="n">coordinates</span><span class="p">)):</span>
                <span class="k">if</span> <span class="n">i</span> <span class="o">!=</span> <span class="n">j</span><span class="p">:</span>
                    <span class="n">firstCoordinate</span> <span class="o">=</span> <span class="n">coordinates</span><span class="p">[</span><span class="n">i</span><span class="p">]</span>
                    <span clas