# print(&quot;\n Remove second occurence : &quot;, nodes[1].data)</span>
            <span class="c1"># print(&quot; K :\n&quot;, K)</span>
            <span class="c1"># print(&quot; L :\n&quot;, L)</span>
            <span class="c1"># K.plot(&quot; Left after removal of &quot; + repr(nodes[1].data))</span>
            <span class="n">E1</span> <span class="o">=</span> <span class="n">K</span>
            <span class="n">E2</span> <span class="o">=</span> <span class="n">union_treap</span><span
          