09. Moving

width = int(input())
length = int(input())
height = int(input())

free_space = width * length * height # volume of the free space

command = input()
while command != "Done":
    num_of_boxes = int(command)
    free_space -= num_of_boxes

    if free_space <= 0:
        print(f"No more free space! You need {abs(free_space)} Cubic meters more.")
        break

    command = input()

if command == "Done":
    print(f"{free_space} Cubic meters left.")