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