0
4
0
4
2
2
23
8
0
0
2
4
2
6
2
2
4
0
4
2
18
4
2
2
2
6
2
2
20
4
2
0
0
4
4
4
4
2
2
0
2
4
0
2
0
0
2
0
2
2
6
25
2
4
2
2
2
2
2
2
6
0
0
0
4
0
0
4
2
2
6
2
8
2
0
0
2
4
6
2
0
4
0
0
2
4
4
2
4
0
36
0
6
0
4
0
2
0
2
6
0
4
2
4
4
12
2
4
2
2
2
0
2
4
4
0
2
0
2
4
2
0
0
0
29
2
2
2
0
0
2
2
6
0
4
0
2
4
4
2
2
2
2
2
0
4
0
2
4
21
12
0
2
2
4
0
0
6
2
22
0
0
0
0
0
0
4
2
2
2
0
2
23
2
4
4
6
4
2
4
4
2
2
4
4
2
0
2
2
2
4
0
23
2
2
4
0
4
2
0
2
0
2
0
4
0
4
2
0
4
0
2
8
4
2
2
2
4
4
2
0
0
0
0
4
0
2
6
2
4
0
2
2
2
2
0
0
0
0
4
0
2
0
2
2
6
4
6
6
2
2
0
0
4
2
0
2
4
2
0
0
2
4
2
0
4
4
6
0
2
2
2
0
0
0
0
4
6
6
0
2
0
2
0
4
4
0
0
