216期:半数【《01,03,04,08,11,12,13,15,16,19,21,27,29,30,32,35,37,38,39,42,43,45,46,47》】开:37准
217期:半数【《01,03,05,07,11,12,13,15,18,22,23,29,30,31,33,34,38,39,40,41,42,43,46,49》】开:26错
218期:半数【《02,05,06,07,12,13,15,18,20,22,23,25,32,33,35,36,37,38,39,40,41,42,45,46》】开:17错
219期:半数【《01,02,03,04,07,09,10,15,20,21,27,29,30,34,35,37,38,41,42,44,46,47,48,49》】开:？？？？