020期：12,13,14,15,16,17,18,19,20,21,22,23,26,27,28,29,30,31,34,35,36,37,38,39,42,43,44,45,46,47,48,49,（共32个）开34中
021期：02,04,05,06,07,10,12,14,15,18,19,20,22,24,25,26,27,28,29,32,34,35,36,37,40,42,44,45,48,49,（共30个）开14中
022期：01,02,03,05,08,09,10,11,12,13,16,18,19,20,21,25,26,28,29,30,31,32,33,35,38,39,40,41,42,43,46,48,49,（共33个）开04错
023期：
