199期:〓〓半数04,06,08,10,11,13,15,16,18,19,20,21,22,24,27,28,31,32,33,34,39,40,42,43,46,47,48,49》开22准
200期:〓〓半数01,02,05,06,07,09,12,13,15,16,20,22,23,24,26,28,30,31,32,35,36,37,38,39,40,42,44,49》开16准
201期:〓〓半数02,03,04,05,08,09,10,12,13,14,16,18,19,23,26,27,28,29,31,34,35,36,37,38,43,44,46,49》开45错
202期:〓〓半数01,02,04,05,06,07,08,11,14,15,16,17,18,19,20,21,24,26,27,29,30,32,33,35,38,40,45,47》开？？