3

message = []
command = input().split()

while not command[0] == "end":
    if command[0] == "Chat":
        message.append(command[1])
    elif command[0] == "Delete":
        if command[1] in message:
            message.remove(command[1])
    elif command[0] == "Edit":
        if command[1] in message:
            message[message.index(command[1])] = command[2]
    elif command[0] == "Pin":
        if command[1] in message:
            message.remove(command[1])
            message.append(command[1])
    elif command[0] == "Spam":
        for el in range(1, len(command)):
            message.append(command[el])
    command = input().split()

[print(el) for el in message]