3
2
1
3
1
2
7
3
3
3
1
1
1
1
3
3
1
1
1
2
1
1
2
1
1
1
1
1
2
1
1
1
2
1
1
1
1
1
1
1
1
1
1
1
1
1
2
1
1
1
1
1
2
1
1
2
2
1
1
1
1
1
2
1
1
1
1
1
1
2