050期：01,03,05,10,14,16,18,20,22,23,24,25,29,30,31,35,36,39,41,42,46,47,48,49··（共半数）开31准
051期：03,08,09,12,13,14,15,16,18,24,25,32,33,35,36,37,40,41,42,43,44,45,48,49··（共半数）开06错
052期：01,02,03,04,07,11,12,15,17,22,23,24,25,26,27,29,30,34,38,40,41,42,47,48··（共半数）开？？！