1
2
1
1
4
2
1
1
8
2
1
1
10
2
1
1
12
2
1
1
13
3
2
2
14
2
1
1
15
2
1
1
16
2
1
1
18
2
1
1
20
2
1
1
22
2
1
1
23
2
1
1
