246期：≌【24】≌《02,04,05,06,08,11,12,14,15,18,22,23,24,26,28,30,33,35,38,40,42,44,45,49》开：30对
247期：≌【24】≌《01,02,03,08,09,11,12,15,17,18,19,25,26,29,31,33,35,37,38,42,43,44,46,49》开：40错
248期：≌【24】≌《01,04,07,09,11,14,15,17,18,19,21,22,25,28,31,32,35,36,39,42,43,45,46,49》开：20错
249期：≌【24】≌《01,04,05,06,10,11,12,15,20,21,25,28,29,30,33,34,35,37,39,42,44,47,48,49》开：//