In the FavoritesListMTF class, we rely on public methods of the positional list ADT to move an element of a list at position p to become the first element of the list, while keeping the relative order of the remaining elements unchanged. Internally, that combination of operations causes one node to be removed and a new node to be inserted. Augment the PositionalList class to support a new method, move to front(p), that accomplishes this goal more directly, by relinking the existing node.