302期：06,07,08,09,10,11,12,14,15,16,17,18,19,21,24,26,27,29,32,33,36,38,42,44,45,46,48,49··（共半数）开06准
303期：04,06,08,09,11,12,19,20,21,22,23,26,27,28,29,30,32,33,38,39,40,42,43,44,45,46,47,48··（共半数）开33准
304期：01,02,03,08,09,11,12,14,16,17,18,19,21,22,24,25,26,28,29,30,31,34,36,38,43,45,48,49··（共半数）开10错
305期：04,05,07,08,10,11,12,16,18,19,20,23,24,26,28,29,30,32,33,34,35,38,39,40,44,45,46,48··（共半数）开？？！