Given the following circular doubly linked list with a pointer head as shown below and : head 2. 15 10 13 After each of the following assignment, indicate changes made in the list by showing which links have been modified by drawing the modified lists. The second assignment should make the changes in the list modified by the first assignment and so on. head->prev->next->next = head->next->next; head = head->prev->prev; head->prev = head head->next->prev = head->prev->prev