2
1
1
3
6
1
1
2
2
4
1
2
1
1
1
1
1
1
1
2
2
2
2
2
1
1
1
1
1
1
2
1
1
2
2
5
3
1
1
1
1
1
2
1
2
1
1
1
1
1