参加人数:
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
1
2
3
4
5
1th
1-10
2-9
3-8
4-7
5-6
2th
1-9
8-10
2-7
3-6
4-5
3th
1-8
7-9
6-10
2-5
3-4
4th
1-7
6-8
5-9
4-10
2-3
5th
1-6
5-7
4-8
3-9
2-10
6th
1-5
4-6
3-7
2-8
9-10
7th
1-4
3-5
2-6
7-10
8-9
8th
1-3
2-4
5-10
6-9
7-8
9th
1-2
3-10
4-9
5-8
6-7