317期半数<<01,04,07,11,12,13,14,15,17,18,19,20,22,23,24,26,28,33,34,36,39,40,43,45,46,47,48,49>>】开18准
318期半数<<03,05,06,07,08,10,12,13,14,15,16,18,21,22,23,24,27,29,31,32,33,36,37,38,40,41,44,47>>】开06准
319期半数<<03,04,05,06,08,09,10,11,13,18,20,21,22,24,27,28,29,34,35,37,39,40,41,42,43,44,45,49>>】开45准
320期半数<<02,06,07,10,12,13,16,19,20,22,23,24,26,29,31,32,35,36,37,38,39,40,41,42,43,44,47,48>>】开28错
321期半数<<01,02,07,08,09,10,11,12,14,15,17,18,20,21,22,23,25,26,29,31,35,38,39,42,43,44,47,49>>】开23准
322期半数<<02,03,05,06,07,09,10,11,14,17,20,21,22,23,25,27,29,30,31,33,34,35,36,37,43,44,46,49>>】开47错
323期半数<<01,05,06,13,15,16,17,19,20,21,22,24,25,27,28,29,30,31,35,36,39,40,41,43,44,46,47,49>>】开？？