1
2
1
1
3
2
1
1
4
3
2
2
5
2
1
1
7
2
1
1
8
2
1
1
11
2
1
1
13
3
2
2
14
2
1
1
18
2
1
1
19
2
1
1
21
2
1
1
22
2
1
1
23
2
1
1
