251期：二十四码→（01,05,07,08,09,10,11,12,15,16,20,21,28,30,34,35,36,38,39,42,45,46,47,48）开：30对
252期：二十四码→（01,04,05,07,08,10,12,15,17,20,21,22,24,25,30,32,33,36,38,39,42,44,47,48）开：22对
253期：二十四码→（01,05,08,11,13,16,18,20,21,22,23,24,25,30,33,34,35,36,40,42,43,47,48,49）开：16对
254期：二十四码→（02,03,05,06,07,10,12,13,15,17,20,21,23,24,25,26,30,33,39,40,43,45,46,49）开：02对
255期：二十四码→（01,02,03,05,06,07,08,14,15,17,18,19,23,27,28,29,31,32,35,36,39,41,42,44）开：00