254期：←24码→（01,02,03,06,09,11,12,14,15,18,20,22,26,27,28,30,32,33,34,37,38,39,41,49）开：27准
255期：←24码→（01,02,04,06,07,09,10,11,14,15,17,19,21,23,28,29,31,34,42,43,45,46,47,48）开：30错
256期：←24码→（01,04,06,07,12,13,14,17,18,20,21,23,26,28,29,33,35,38,41,42,45,46,47,49）开：39错
257期：←24码→（01,05,06,08,11,18,20,21,22,28,30,31,32,34,36,37,39,40,42,43,44,45,47,49）开：08准
258期：←24码→（02,03,04,05,08,09,11,12,14,19,20,21,23,25,27,29,31,34,38,40,41,45,46,48）开：？？
