243期：〓(01,03,05,06,07,08,09,14,15,16,21,22,27,30,32,35,36,37,38,40,42,45,47,48)〓→开:21准
244期：〓(02,04,08,09,11,12,14,16,18,23,24,26,28,30,36,37,38,39,42,44,45,46,47,48)〓→开:46准
245期：〓(01,04,05,08,10,13,14,15,17,20,21,22,25,28,30,31,33,34,38,39,46,47,48,49)〓→开:18错
246期：〓(03,06,10,12,13,15,17,18,20,21,24,25,29,31,37,38,39,40,41,42,44,45,48,49)〓→开:30错
247期：〓(02,05,07,09,10,12,13,14,16,19,22,25,28,30,31,35,38,39,40,42,43,46,47,48)〓→开:??←