int, 20&gt; A;
 A.size; <span class="comment">// Returns 0</span>
 A.insert(10);  <span class="comment">// Adds 10 to the end of the list</span>
 A[0];  <span class="comment">// Returns 10</span>
 A.insert(1,0);  <span class="comment">// Adds 1 to front of list so list reads 1,10</span>
 A.replace(5,0, 1); <span class="comment">// Replaces element 1 with a 5.  List reads 1,5</span>
 A.del();  <span class="comment">// Deletes the last item on the list. List reads 1</span>
 A.size; <span class="comment">// Re