2
0
0
4
4
2
2
4
2
4
2
4
2
2
2
6
4
2
4
2
2
2
2
2
2
0
4
2
2
2
2
2
0
4
2
2
0
2
2
6
0
2
0
2
0
0
4
4
2
0
4
0
2
4
0
2
2
0
0
2
0
2
2
0
0
0
0
0
2
8
2
2
0
4
0
0
2
2
2
2
0
0
4
0
2
2
0
2
4
0
2
4
2
4
0
2
0
0
4
6
3
2
4
4
0
2
2
2
2
4
0
2
4
2
2
2
4
2
4
6
4
2
2
2
2
0
0
2
2
9
4
6
4
2
0
0
0
4
2
8
2
2
2
4
2
2
0
0
2
4
2
2
0
2
2
6
2
4
4
6
0
6
2
4
2
4
2
2
0
4
2
2
0
4
2
2
2
2
2
2
38
2
4
0
0
2
2
0
4
2
2
0
2
0
6
0
1
2
4
0
2
2
2
2
2
0
0
2
2
4
2
2
2
0
6
2
0
2
2
0
0
4
0
2
0
3
2
2
2
4
4
4
2
4
2
2
2
4
2
2
12
6
2
2
0
2
2
0
8
4
2
2
0
0
4
0
0
0
2
2
2
2
2
2
0
0
2
0
13
2
2
2
0
0
2
2
2
0
0
0
4
2
0
2
4
0
0
6
