0
0
2
2
0
2
0
2
4
4
4
4
4
0
2
0
4
2
2
2
0
4
2
2
2
0
4
0
2
0
4
4
0
0
0
2
2
2
0
0
0
2
2
2
0
12
0
2
0
2
0
2
2
0
0
2
2
2
2
2
0
0
4
2
2
0
2
2
0
2
2
2
4
0
4
0
2
2
2
0
0
4
0
2
2
2
0
0
0
2
0
0
0
0
0
0
0
4
0
0
2
0
0
2
0
4
0
2
4
4
4
4
2
2
4
0
2
2
2
0
0
2
0
0
0
2
2
4
0
0
0
0
4
2
0
4
0
0
4
2
0
4
4
4
0
0
2
2
2
0
2
4
4
0
4
0
2
2
4
0
4
2
2
2
0
2
2
0
2
0
2
0
4
2
0
4
2
2
0
2
13
2
0
2
2
0
2
2
2
2
2
0
2
0
4
2
2
0
0
2
0
2
2
0
0
2
2
4
4
2
0
4
2
4
0
2
2
4
6
0
0
0
0
2
0
10
2
2
2
2
0
2
2
0
2
2
2
0
2
2
7
2
0
0
4
0
2
2
4
2
2
4
0
2
2
2
2
2
0
4
2
0
0
0
2
2
2
0
0
0
0
2
2
2
2
2
2
0
4
11
2
0
2
0
0
0
0
9
