(1) Round robin: It can be divided into two groups with four teams in each group. The group adopts single cycle, the winner gets one point, and the loser doesn't get any points. In the end, the top two teams advanced and produced semi-finals. The game can be decided by lottery, or one team can play the second team of another group. In this way, the third place in the championship was finally decided.
(2) knockout: Eight teams draw lots to decide their opponents and divide them into four groups. The champions of each group advanced and finally decided to win the third place.