0
2
2
2
2
2
6
0
2
0
4
0
2
2
0
2
0
2
2
0
0
2
2
2
4
0
2
0
10
2
0
6
0
4
2
2
0
2
2
6
2
0
2
4
2
4
8
0
0
2
4
2
0
4
4
2
0
0
0
6
2
0
0
4
2
2
4
4
2
2
0
2
4
8
0
2
2
2
0
2
2
2
0
6
0
4
2
4
2
2
0
0
0
0
2
4
0
0
0
2
2
2
2
4
0
2
0
0
0
2
4
0
4
2
4
4
8
4
2
2
4
0
0
4
4
2
2
8
2
2
4
0
4
4
4
2
6
6
4
2
9
4
4
4
2
8
6
4
4
4
6
6
6
6
8
4
6
4
4
6
4
6
6
4
7
4
2
6
2
0
2
2
0
4
6
2
0
2
0
4
2
0
0
4
4
0
0
4
4
0
2
4
2
4
2
2
2
8
2
2
2
2
0
2
2
4
0
2
2
0
2
2
4
2
8
2
2
4
4
0
0
2
0
0
2
4
2
4
2
2
0
0
4
2
0
4
0
0
0
0
2
2
2
2
6
2
4
4
2
4
0
6
4
2
2
2
2
0
0
4
0
4
4
0
6
4
2
2
2
2
4
8
2
6
4
4
8
2
2
0
0
2
0
0
0
2
2
0
