2
2
1
1
4
2
1
1
6
1
0
0
7
2
1
1
9
2
1
1
11
2
1
1
12
2
1
1
13
2
1
1
15
2
1
1
17
2
1
1
18
2
1
1
21
2
1
1
24
2
1
1
