;</span> <span class="identifier">last</span><span class="special">(</span><span class="identifier">it</span><span class="special">-&gt;</span><span class="identifier">first</span><span class="special">)</span> 
             <span class="special">&lt;&lt;</span> <span class="string">" -&gt; "</span> <span class="special">&lt;&lt;</span> <span class="identifier">it</span><span class="special">-&gt;</span><span class="identifier">second</span> <span class="special">&lt;&lt;</span> <span class="identifier">end