from collections import deque queue = deque([10, 20, 30]) queue.append(40) # apppend data at the right side queue.append(50) # apppend data at the right side queue.appendleft(5) # apppend data at the left side print("After Insertion ata:") for i in range(len(queue)): print(queue[i], end=" ") print("\nAfter removing Data") queue.popleft() # data deleted from the left side for i in range(len(queue)): print(queue[i], end=" ")