9시:23,31,40.10시:00,21,32,43.11시:00,10,32,49.12시:00,11,22,33,44.13시:01,11,22,33,50.14시:01,12,23,34,45.15시:02,12,23,34,51.16시:02,13,23,38,53임.
당신은 어느 그룹입니까?