이시간 이후 17:00,05,20,30,35,40,45,50,18:00,10,15,25,30,35,40,50,19:00,10,30,40,20:00,15,30,45,21:00,30,45,22:10,20,40,23:00,10,40,50,24:00시차
당신은 어느 그룹입니까?