cupcake_shop

from collections import deque


def stock_availability(list_of_boxes, command, *args):
    if command == 'delivery':
        list_of_boxes.extend(args[:])
    elif command == 'sell':
        list_of_boxes = deque(list_of_boxes)
        if not args:
            list_of_boxes.popleft()
        elif type(args[0]) == int:
            for _ in range(args[0]):
                if list_of_boxes:
                    list_of_boxes.popleft()

        else:
            for element in args:
                while element in list_of_boxes:
                    list_of_boxes.remove(element)
    return list(list_of_boxes)


print(stock_availability(["choco", "vanilla", "banana"], "delivery", "caramel", "berry"))
print(stock_availability(["chocolate", "vanilla", "banana"], "delivery", "cookie","banana"))
print(stock_availability(["chocolate", "vanilla", "banana"], "sell"))
print(stock_availability(["chocolate", "vanilla", "banana"], "sell", 3))
print(stock_availability(["chocolate", "chocolate", "banana"], "sell", "chocolate"))
print(stock_availability(["cookie", "chocolate", "banana"], "sell", "chocolate"))
print(stock_availability(["chocolate", "vanilla", "banana"], "sell", "cookie"))