The following figure depicts a circular doubly linked list with current being a pointer to one of its nodes. Let node be a struct consisting of a char key and node* next. What is printed by the following code segment? node forward = current; current; backward node do ( cout < < forward->key; cout < < backward->key; forward forward->next; backward } while (forward 1= backward); current A H next prev backward->prev->prev;// notice the two prev pointers.