252期：≌【24】≌《04,05,06,07,08,09,12,15,16,17,19,20,23,25,28,31,32,34,35,38,39,40,48,49》开：23对
253期：≌【24】≌《01,02,04,05,06,09,12,13,14,16,18,19,21,25,30,34,38,39,41,43,44,46,47,49》开：33错
254期：≌【24】≌《01,02,03,05,07,08,12,13,14,15,19,20,28,29,30,34,37,38,39,41,42,45,46,48》开：17错
255期：≌【24】≌《01,04,06,07,10,11,12,13,18,19,20,22,25,28,31,33,34,35,36,40,41,45,47,48》开：//