3
3
1
34
67
1
1
3
2
1

1
1
2
1
1
1
4
1
1
1
2
1
1
1
1
35
1
1
1
2
1
3
1
1
1
1
1
1
1
2
1
2
1
1
1
1
1
1
1
1
2
26
1
3