7
2
1
1
8
2
1
1
9
2
1
1
10
10
9
9
12
2
1
1
15
2
1
1
16
2
1
1
17
2
1
1
19
2
1
1
20
2
1
1
21
2
1
1
22
3
2
2
23
2
1
1
24
2
1
1
