1
2
1
1
2
2
1
1
4
2
1
1
6
2
1
1
7
2
1
1
9
2
1
1
12
2
1
1
13
2
1
1
14
2
1
1
15
2
1
1
16
2
1
1
18
1
0
0
19
2
1
1
20
2
1
1
23
2
1
1
