252期：←24码→（03,05,08,09,10,11,13,14,15,16,20,21,22,23,24,25,27,32,37,38,39,43,47,48）开：22准
253期：←24码→（02,03,07,10,12,13,14,16,19,23,28,30,31,32,34,35,36,37,38,39,40,41,45,49）开：16准
254期：←24码→（05,06,08,09,10,11,14,18,21,22,23,25,27,31,33,35,36,39,43,44,45,46,48,49）开：02错
255期：←24码→（05,08,10,11,12,16,20,21,22,23,25,26,29,30,32,33,36,37,41,43,44,45,47,48）开：44准
256期：←24码→（01,03,04,09,10,11,12,14,16,18,19,20,23,25,26,27,29,30,31,34,35,38,42,43）开：？？