3
2
1
1
5
2
1
1
6
2
1
1
7
2
1
1
10
2
1
1
11
2
1
1
12
2
1
1
13
2
1
1
14
2
1
1
15
2
1
1
22
2
1
1
23
2
1
1
25
2
1
1
