1
4
2
3
2
3
2
3
2
3
2
3
2
3
2
3
9
2
9
2
9
2
9
2
9
2
9
2
9
2
9
2
9
2
9
2
9
2
9
2
9
2
9
2
9
2
9
2
25
1
25
1
25
1
25
1
25
1
25
1
25
1
25
1
25
1
25
1
25
1
25
1
25
1
25
1
25
1
25
1
25
1
25
1
25
1
25
1
25
1
25
1
25
1
25
1
25
1
25
1