7:20,8:00,8:30,8:40,9:00,9:30,10:00. 10:20분부터 1시까지는 10분간격이고 13:30,13:40,14:00,14:30.14:50,15:00,15:10,15:30,15:40,16:00,16:20 16:20 등
당신은 어느 그룹입니까?