In the first round, nine teams automatically entered the next round (former 16), and the remaining 23 -9 = 14 can be decided by drawing lots.
The remaining 14 teams fought each other, eliminated seven teams, and the remaining seven teams entered the next round. Then the seven teams that won in the first round and the nine teams that left in the first round (* * * count 16 teams) continue to eliminate the second round (the winner enters the quarter-finals), the third round 1/4, and the fourth round. The fifth round of the championship and runner-up final.
All competitions are counted as 5 rounds, and the third runner-up can be decided in 22 competitions. I think the third place can be tied, and there is no need to play a play-off.