def main():
    t = convert(input("What time is it?\t\t"))
    if 7 <= t <= 8:
        print("breakfast time")
    elif 12 <= t <= 13:
        print("lunch time")
    elif 18 <= t <= 19:
        print("dinner time")


def convert(time):
    h ,m = map(int, time.split(":"))
    return float(h + m / 60)


if __name__ == "__main__":
    main()