state = {}


def detect_anomaly(name: str, action: str) -> str:
    global state
    try:
        if state[name] == action:
            return " (ANOMALY)"
    except KeyError:
        if action == "exit":
            return " (ANOMALY)"
    return ""


def print_log(name: str, action: str) -> None:
    paction = "entered" if action == "entry" else "exited"
    print(f"{name} {paction}{detect_anomaly(name, action)}")


n = int(input())

for _ in range(n):
    action, name = input().split()
    print_log(name, action)
    state[name] = action