Refer to the input circular doubly linked list below, variable cur points to Node B, and variable newNode points to a created node object that contains the data element D. Input Doubly Circular LinkedList with Dummy Node Question: if we like to insert(and wire in) newNode before cur, what sequences of operations we should perform? newNode.next=cur; newNode.prev = cur.prev; cur.prev=newNode; cur.prev.next=newNode; newNode.next=cur; newNode.prev = cur.prev; cur.prev.next=newNode; cur.prev=newNode; newNode.next=cur.next; newNode.prev = cur; cur.next.prev=newNode; cur.next=newNode; newNode.next=cur; newNode.prev = cur.prev; cur.next.prev=newNode; cur.prev=newNode; newNode.next=cur.next; newNode.prev = cur; cur.next=newNode; cur.next.prev=newNode