4
0
2
2
2
0
4
6
2
6
0
4
2
2
2
2
0
4
0
2
0
21
0
0
0
0
0
6
4
2
0
2
0
0
2
2
0
0
6
2
4
0
2
2
0
6
0
4
17
6
19
2
0
6
2
2
4
0
2
0
0
0
2
2
0
2
4
0
0
0
2
4
0
0
0
2
0
0
0
12
2
0
4
2
2
0
0
4
2
0
10
4
0
8
0
0
6
2
2
2
4
4
0
0
0
10
0
0
6
4
2
0
8
8
0
0
2
8
0
2
2
0
0
2
0
0
2
2
0
4
2
0
2
0
0
2
4
2
0
0
6
6
4
2
4
0
4
0
0
2
0
0
4
0
2
2
13
0
2
2
0
0
2
4
4
2
4
4
21
0
6
0
17
0
4
4
0
4
4
2
0
0
2
0
2
2
0
2
2
4
2
2
0
0
0
0
2
0
0
0
4
6
0
2
2
10
2
0
2
2
2
0
0
2
0
0
0
0
0
15
12
0
2
4
0
2
0
4
2
4
4
2
4
0
0
0
4
0
2
0
6
0
0
4
0
2
2
6
0
6
0
0
4
0
2
12
10
2
2
2
8
0
0
0
0
0
0
4
2
15
0
2
13
8
2
2
8
2
10
6
4
10
0
0
0
0
2
4
