What's the order of the seat labels?

The main leader is in the middle, with No.2 leader in the left hand position of 1 and No.3 leader in the right hand position of 1.

Second, when the leader is even:

1, when the number of leaders equals 2:

The leader of 1 is on the left, and the leader of 2 is on the right.

2. When the number of leaders is greater than 2:

1, No.2 leader is centered at the same time, and upward to the left, 1 leader is left, No.2 leader is in the right hand position of 1 leader, and No.3 leader is in the left hand position of 1 leader.