020期：((03,04,05,08,09,13,16,19,24,25,30,34,36,38,42,43))开：34中中中
021期：((01,02,06,08,10,11,12,18,20,26,31,39,41,44,47,49))开：14错错错
022期：((04,05,06,09,12,15,18,24,26,28,30,33,40,41,46,49))开：04中中中
023期：((04,08,09,11,12,14,15,18,19,20,21,27,35,44,46,48))开：45错错错
024期：((06,15,16,17,18,21,26,27,28,33,40,41,43,46,47,48))开：41中中中
025期：((01,04,06,13,16,17,25,26,27,30,34,36,39,46,47,48))开：30中中中
026期：((01,02,05,09,12,14,27,28,35,37,39,41,43,45,46,49))开：37中中中
7-5
027期：((02,04,10,15,16,18,19,24,25,27,31,35,38,40,45,48))开：25中中中
028期：((04,05,11,12,13,16,21,31,37,38,41,43,44,46,48,49))开：40错错错
