2
1
2
4
2
1
6
0
0
6
0
0
4
0
0
5
0
0
7
3
3
6
0
0
2
0
0
8
0
0
12
0
0
4
0
0
5
0
0
6
0
0
4
4
8
2
3
2
0
1
8
0
0
10
0
2
6
0
0