09:30,09:45,10:00,10:20,10:40,11:00,11:30,12:00,12:30,13:00,13:30,14:00,14:20,14:40,15:00,15:20,15:40,16:00,16:30,17:00,17:20,17:40,18:00,18:20,18:40,
당신은 어느 그룹입니까?