249期：24码→01,02,03,12,13,15,17,20,21,24,25,26,27,31,32,34,35,36,37,42,43,45,47,49←开：02中
250期：24码→01,02,03,04,05,07,09,10,12,14,22,24,25,26,28,29,32,33,34,37,39,44,46,49←开：04中
251期：24码→01,02,07,08,13,16,17,19,20,21,22,24,27,30,31,32,34,36,37,40,41,45,47,49←开：41中
252期：24码→02,04,05,06,08,10,11,15,16,17,18,19,24,27,31,33,34,35,36,37,39,42,46,47←开：？？