4
4
3
2
0
47
0
6
2
4
0
2
4
0
4
0
2
0
2
2
4
4
4
0
2
4
6
0
4
0
0
13
0
2
2
0
2
2
2
2
0
0
0
0
4
2
2
2
4
0
2
2
6
2
0
2
11
4
4
2
2
0
0
0
0
4
2
2
2
4
0
2
2
6
0
0
2
0
4
4
4
0
2
0
2
0
0
2
2
4
9
4
0
2
2
6
9
4
0
0
6
6
0
0
11
4
4
0
0
2
2
0
0
2
0
4
13
0
0
5
4
2
6
6
0
6
4
2
8
2
0
13
2
2
2
6
2
6
4
0
4
6
6
2
2
0
2
2
2
6
2
2
0
4
2
2
2
2
2
2
2
6
8
0
0
6
4
0
2
0
6
0
2
2
2
0
4
2
2
4
4
4
4
0
4
4
4
4
2
17
10
2
4
6
2
2
0
4
4
4
4
0
4
4
2
13
2
4
4
0
13
2
2
2
2
2
0
0
0
0
0
2
2
0
0
0
0
0
0
0
0
2
0
0
0
11
0
0
6
8
0
2
2
0
11
2
0
0
2
2
0
17
0
6
4
4
17
6
2
13
0
0
7
2
0
6
6
2
2
0
0
9
4
8
0
0
20
4
4
0
6
4
2
2
2
0
11
6
