051期：01,03,05,06,07,09,10,12,16,17,18,19,20,21,22,27,31,34,35,38,39,40,44,49··（共半数）开49准
052期：01,02,03,04,05,08,11,12,17,19,22,23,26,27,28,30,34,38,41,42,43,45,47,48··（共半数）开10错
053期：02,04,05,07,08,13,17,22,23,24,26,29,31,33,34,37,39,41,42,43,46,47,48,49··（共半数）开？？！