237期：←24码→（03,05,06,07,10,12,18,19,20,21,28,30,32,34,35,36,38,39,40,41,42,45,46,47）开：46准
238期：←24码→（01,02,04,06,07,09,14,17,23,24,25,26,27,28,29,30,31,38,39,40,45,46,47,48）开：12错
239期：←24码→（03,07,09,11,12,13,16,17,19,21,23,26,27,28,29,30,31,33,35,39,42,43,46,49）开：36错
240期：←24码→（01,03,05,06,07,09,10,14,15,20,21,23,24,25,29,30,32,36,38,39,41,44,45,49）开：？？
