247期：≌【24】≌《02,05,06,07,10,11,13,14,15,17,18,20,21,22,23,25,29,31,33,38,40,43,47,49》开：29对
248期：≌【24】≌《01,03,08,09,10,11,13,15,20,22,23,24,26,32,33,36,39,40,41,43,44,45,47,48》开：15对
249期：≌【24】≌《01,06,07,09,10,11,12,13,15,16,17,18,19,20,24,25,26,29,34,37,39,41,47,49》开：02错
250期：≌【24】≌《04,06,15,18,19,23,26,27,28,29,30,31,32,35,36,37,38,39,41,42,43,45,46,49》开：04对
251期：≌【24】≌《02,05,06,07,08,16,18,19,25,26,27,28,29,33,35,36,37,38,39,41,43,46,48,49》开：41对
252期：≌【24】≌《01,03,04,05,07,10,14,17,18,22,25,28,31,32,33,36,37,38,40,42,43,44,46,49》开：24错
253期：≌【24】≌《02,05,08,09,12,14,15,16,17,18,21,22,23,25,27,29,31,35,40,41,43,45,47,48》开：//