020期：((05,06,09,14,16,19,23,25,31,36,37,38,39,40,43,47))开：16中中中
021期：((08,12,14,17,20,21,22,25,32,34,35,37,39,47,48,49))开：39中中中
022期：((02,06,12,14,16,19,22,23,25,27,28,31,38,43,45,46))开：40错错错
023期：((01,06,08,09,13,15,16,18,24,26,28,31,36,44,45,48))开：08中中中
024期：((01,12,15,16,21,22,24,26,30,32,34,36,45,47,48,49))开：38错错错
025期：((02,06,08,15,16,18,21,24,25,27,30,32,35,37,47,48))开：47中中中
026期：((11,12,17,19,20,21,23,28,29,30,36,37,38,39,41,43))开：23中中中
7-5
027期：((04,05,06,07,08,19,25,27,28,33,34,43,44,46,47,48))开：06中中中