12 how does the team arrange the knockout? Please, thank you.

It is not easy to arrange a direct elimination match. If the four teams are particularly strong, they can not participate in the first round of elimination, the remaining eight teams will be eliminated, and the winning four teams will enter the top eight. First, let the four teams with strong strength draw lots to enter the 1, 3, 5 and 7 places in the upper and lower half, then let the eight teams with average strength draw lots to find the opponents in the first round, and then give each knockout a quarter-final ranking, which is 2, 4, 6 and 8 places in the upper and lower half respectively, so that after the first round, the winning team will find the second round. There is nothing to say in the final. Another scheme is that the first round is divided into four groups, with three teams in each group, playing a single round robin, with the first place in each group playing the semi-finals directly, and then drawing lots for the semi-finals. You can also choose two teams from each group to enter the quarter-finals. When the quarter-finals draw lots, it can be guaranteed that the teams that meet in the group stage will not meet again. In other words, two teams in the same group will only meet in the final, otherwise, the same two teams will not play twice. Specifically, A 1, B2, C 1, D2 is the upper half, and A2, B 1, C2, D 1 are the lower half.