1
2
1
1
2
2
1
1
4
2
1
1
7
21
20
20
10
2
1
1
13
2
1
1
15
2
1
1
17
2
1
1
18
2
1
1
20
2
1
1
21
3
2
2
23
2
1
1
24
2
1
1
