2
2
1
1
3
2
1
1
4
2
1
1
6
2
1
1
11
2
1
1
12
2
1
1
17
2
1
1
18
2
1
1
19
2
1
1
21
2
1
1
22
2
1
1
23
2
1
1
24
2
1
1
