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