027期：01,02,06,07,09,13,18,22,23,24,26,27,29,32,33,35,38,39,41,42,45,47,48,49··（共半数）开45准
028期：02,03,04,06,08,09,10,14,18,19,20,22,24,26,27,30,33,35,38,39,43,45,48,49··（共半数）开13错
029期：01,06,07,08,09,10,12,13,18,19,21,22,23,26,27,29,31,32,36,40,41,43,47,48··（共半数）开？？！