2
4
4
0
4
0
0
2
4
2
2
0
2
0
2
0
2
4
0
2
2
0
2
2
2
0
0
0
0
0
2
0
0
2
2
4
4
0
0
2
0
0
2
2
4
4
4
2
2
2
2
2
2
6
0
2
0
4
0
0
4
0
4
4
0
2
2
2
2
0
4
0
2
2
2
4
4
2
0
0
0
2
4
2
2
6
4
4
2
0
2
0
0
2
0
0
2
4
0
4
2
0
0
2
2
4
4
0
12
4
2
4
11
4
2
2
2
2
0
0
4
0
0
4
6
2
0
4
2
0
2
0
0
0
0
2
2
4
2
0
0
2
2
0
0
4
4
4
0
0
2
2
0
2
2
4
4
4
0
0
2
45
2
0
0
0
0
0
4
0
2
2
2
2
0
0
4
2
2
6
75
4
6
0
2
58
2
4
0
4
0
4
0
0
0
2
0
4
2
4
4
2
0
2
4
0
0
4
4
4
2
4
2
4
0
4
0
0
4
6
0
0
0
4
0
2
2
2
0
2
0
2
2
6
0
2
0
4
0
0
0
2
4
0
4
2
0
0
0
2
4
0
0
2
0
2
2
4
2
0
0
0
0
0
0
2
0
2
0
17
2
0
0
2
4
0
2
2
2
4
0
25
0
2
2
2
4
0
