281期：←24码→（03,06,07,08,09,13,15,16,17,19,21,23,25,26,27,32,33,36,37,38,40,47,48,49）开：47准
282期：←24码→（01,06,09,11,13,14,17,22,24,25,29,31,32,34,35,38,39,43,44,45,46,47,48,49）开：41错
283期：←24码→（01,03,04,07,15,17,18,19,22,24,26,29,31,33,34,35,37,39,40,44,45,46,48,49）开：？？
