238期：〓(01,03,04,06,08,09,12,13,17,18,19,20,21,24,25,28,30,33,35,38,39,43,47,49)〓→开:17准
239期：〓(01,02,05,06,12,13,14,15,20,21,22,25,26,29,30,32,34,37,39,41,42,43,46,47)〓→开:05准
240期：〓(03,04,06,10,11,15,16,19,20,23,25,27,28,30,31,32,34,38,39,42,43,44,45,49)〓→开:27准
241期：〓(03,05,06,07,09,12,16,18,19,21,24,25,28,29,30,31,33,34,35,37,39,44,46,47)〓→开:49错
242期：〓(03,04,05,06,07,11,12,15,16,17,18,21,24,25,26,27,30,33,37,38,40,46,47,49)〓→开:??←