020期【33,01,02,14,17,18,20,28,29,31,35,37,40,48,03,13,19,22,25,27,32,36,41,44】开29对
021期【49,08,14,17,21,23,30,33,35,37,40,42,04,06,10,16,19,22,24,26,27,29,38,43】开35对
022期【34,36,37,17,32,39,45,48,06,09,10,15,20,21,22,24,27,28,29,30,31,33,40,42】开41错
023期【28,20,23,26,30,32,36,37,41,46,49,02,17,19,21,22,24,27,38,39,45,48,01,03】开00对