4
0
0
4
2
1
4
1
1
4
0
0
4
0
0
4
0
0
15
2
1
5
3
10
4
0
0
9
0
0
8
0
0
4
0
0
4
0
0
4
0
0
4
0
0
6
0
0
4
0
0
4
1
0
4
1
0
9
0
0