02. Shopping List

list_products = input().split('!')

command = input()

while command != "Go Shopping!":
    tokens = command.split(' ')
    command = tokens[0]
    product = tokens[1]

    if command == "Urgent" and product not in list_products:
        list_products.insert(0, product)
    elif command == "Unnecessary" and product in list_products:
        list_products.remove(product)
    elif command == "Correct" and product in list_products:
        new_product = tokens[2]
        list_products[list_products.index(product)] = new_product
    elif command == "Rearrange" and product in list_products:
        list_products.append(list_products.pop(list_products.index(product)))

    command = input()

print(", ".join(list_products))