301期半数<<01,02,09,10,11,12,13,15,18,20,22,23,24,26,28,29,31,32,35,36,37,38,39,40,41,43,48,49>>】开18准
302期半数<<01,02,03,05,06,07,08,10,15,16,17,21,22,24,25,26,27,28,30,36,37,38,39,43,46,47,48,49>>】开06准
303期半数<<01,03,06,07,10,11,12,14,15,16,17,20,22,23,24,26,27,28,29,31,34,38,39,41,42,43,46,47>>】开33错
304期半数<<02,04,06,11,12,13,14,15,16,17,18,20,22,23,25,26,27,30,32,36,37,38,41,42,45,46,47,49>>】开10错
305期半数<<01,02,03,04,06,07,08,09,11,15,16,17,24,25,26,28,29,30,32,34,35,37,39,40,41,42,48,49>>】开16准
306期半数<<01,04,07,08,09,11,15,18,20,21,22,24,27,28,30,31,32,33,35,37,39,42,43,44,45,47,48,49>>】开？？