028期：01,02,03,05,08,10,12,15,17,18,21,24,25,26,29,32,34,38,40,42,44,45,46,49··（共半数）开40准
029期：01,02,03,05,06,07,08,09,10,11,13,15,16,19,20,23,27,29,34,35,38,41,43,46··（共半数）开13准
030期：03,06,07,08,09,12,13,19,20,23,24,25,27,28,29,34,35,40,41,44,45,47,48,49··（共半数）开25准
031期：01,02,04,05,09,10,11,12,14,19,24,25,26,28,30,32,33,34,36,37,40,44,47,48··（共半数）开22错
032期：01,05,06,07,08,11,12,13,18,20,21,23,24,26,27,29,31,33,34,35,36,39,44,45··（共半数）开？？！