2
1
4
2
1
2
1
1
2
1
1
4
1
3
1
1
1
1
1
4
1
1
1
1
1
1
8
1
1
2
1
1
1
1
1
1
7
2
2
1
1
1
1
1
1
1
1
1
1
6