2
2
1
1
4
2
1
1
5
1
0
0
9
3
2
2
10
2
1
1
12
2
1
1
14
2
1
1
15
2
1
1
17
2
1
1
18
2
1
1
19
2
1
1
20
3
2
2
21
1
0
0
