249期：《《01,02,08,11,19,23,27,30,31,32,33,34,36,40,44,46》》开：23√
250期：《《02,04,06,07,14,18,20,23,27,28,32,37,38,39,45,47》》开：14√
251期：《《05,10,16,18,19,20,22,25,26,31,35,36,37,41,46,49》》开：30x
252期：《《01,03,07,09,15,16,20,23,26,27,30,33,38,40,43,45》》开：22x
253期：《《02,03,12,18,20,22,23,24,26,29,32,35,38,39,40,42》》开：中？