081期：02,05,07,10,11,12,15,17,19,20,21,22,26,27,33,36,40,41,42,43,44,46,47,49··（共半数）开17准
082期：02,03,06,10,11,12,13,14,18,19,20,21,22,28,32,34,35,38,39,40,43,44,45,49··（共半数）开27错
083期：02,09,11,14,15,17,21,23,24,26,28,29,30,31,32,33,37,38,39,41,44,46,47,48··（共半数）开05错
084期：01,04,05,06,08,10,12,13,14,15,17,18,19,21,22,25,26,27,28,29,36,39,44,47··（共半数）开？？！