1
2
1
1
4
2
1
1
8
2
1
1
9
2
1
1
10
2
1
1
14
2
1
1
15
2
1
1
17
2
1
1
18
2
1
1
19
12
11
11
20
2
1
1
21
2
1
1
22
2
1
1
