The number of other teams is 1- 12.
The first round:
( 1) 1-2
(2)3-4
(3)5-6
(4)7-8
(5)9- 10
(6) 1 1- 12
Second round
(7) No.1 seed-(1) winner
(8)(2) Winner-(3) Winner
(9)(4) Winner-(5) Winner
(10) No.2 seed -(3) winner
semifinal
(1 1)(7) Winner -(8) Winner
(12)(9) Winner -( 10) Winner
final
(13)( 1 1) Winner -( 12) Winner