215期半数<<01,02,04,05,06,07,08,12,14,17,18,19,21,27,28,30,31,33,34,35,36,38,42,43,46,47,48,49>>】开18准
216期半数<<02,03,06,07,08,09,10,11,12,15,21,25,26,27,28,29,30,31,33,34,35,36,39,40,41,42,44,48>>】开49错
217期半数<<03,05,08,10,11,12,13,14,15,16,17,22,23,24,25,26,28,29,31,32,33,35,37,41,42,43,44,46>>】开34错
218期半数<<02,04,09,10,11,12,13,15,18,19,20,21,23,25,28,29,30,33,37,39,40,42,43,44,46,47,48,49>>】开？？