Then gather the first and second teams in each group, *** 12 team, the first round elimination 12 team needs 6 games, and the second round needs 3 games.
In the third round, the remaining three teams won the championship and finished third, but to determine the exact ranking, they had to play one game, so it was also three games.
So * * * needs 36+6+3+3=48 games.