246期：二十四码，[[01,02,03,07,08,09,10,13,16,21,23,27,28,32,34,35,36,38,41,42,43,45,48,49]]开：43对
247期：二十四码，[[04,06,09,11,14,15,16,20,23,24,25,26,27,31,32,36,38,39,41,44,45,46,48,49]]开：47错
248期：二十四码，[[01,02,05,06,07,09,10,11,16,17,19,23,26,28,29,32,34,35,40,41,43,46,47,49]]开：46对
249期：二十四码，[[07,09,10,11,12,13,15,17,20,22,24,25,26,30,31,33,35,39,42,43,46,47,48,49]]开：02错
250期：二十四码，[[02,03,04,07,10,12,14,15,17,20,22,23,24,26,27,28,30,33,34,36,38,41,42,45]]开：12对
251期：二十四码，[[05,07,08,13,14,15,16,17,18,22,23,24,25,29,30,31,36,37,40,41,43,45,46,47]]开：05对
252期：二十四码，[[06,08,09,11,13,14,18,22,23,25,26,27,28,30,33,34,35,38,39,40,41,46,48,49]]开：00