11:30,11:45,12:00,12:15,12:30,12:45,13:00,13:20,13:40,14:00,14:15,14:30,14:45,15:00,15:15,15:30,15:45,16:00,16:20,16:40,17:00,17:15,17:30,17:45,18:00,
당신은 어느 그룹입니까?