chat_logger

chat = []
while True:
    command = input().split()
    if command[0] == "end":
        break
    elif "Chat" == command[0]:
        chat.append(command[1])
    elif command[0] == "Delete" and command[1] in chat:
        chat.remove(command[1])
    elif command[0] == "Edit" and command[1] in chat:
        index_msg = chat.index(command[1])
        chat[index_msg] = command[2]
    elif command[0] == "Pin" and command[1] in chat:
        chat.remove(command[1])
        chat.append(command[1])
    elif command[0] == "Spam":
        messages = command[1:]
        chat = chat + messages

print("\n".join(chat))