19 How to divide the basketball of the team fairly?

It's actually very good. Divided into two groups: group A 10, group B, 9 teams, single cycle in the group. After that, the top three teams and ***6 teams in each group directly advanced to the knockout stage, and the remaining 13 teams scored ~ to win by net, and the top two teams advanced. So there will be 8 teams in the knockout, so let's catch them, haha ~!