0
2
0
2
0
2
2
0
2
0
2
2
0
2
0
2
2
2
2
2
2
4
0
2
0
2
0
0
2
0
0
2
0
2
2
2
2
0
0
2
2
0
2
4
4
2
4
0
0
2
0
0
2
0
0
2
0
2
2
0
0
2
0
0
0
0
0
0
4
2
2
0
0
2
0
0
2
0
0
0
2
4
2
2
0
0
0
0
4
2
0
0
2
4
0
2
2
0
2
4
2
2
0
0
2
0
2
2
0
2
2
0
4
4
2
2
0
2
2
2
0
4
0
2
4
2
19
0
4
2
0
0
0
0
0
0
2
0
2
2
2
2
2
2
2
21
0
15
2
0
2
2
2
2
17
0
2
2
0
4
2
2
4
2
2
0
0
2
2
2
0
0
0
2
0
0
0
0
2
2
2
0
0
0
4
0
2
2
2
0
0
0
0
2
2
0
4
17
0
2
2
2
0
0
0
0
4
4
2
0
2
0
2
2
0
0
0
2
0
2
2
0
2
2
2
2
2
0
0
2
0
0
0
2
2
4
0
2
2
2
0
2
2
0
0
17
0
2
2
2
4
28
0
0
4
4
0
2
0
0
0
2
2
2
0
0
4
2
2
2
0
2
0
2
4
0
2
4
4
4
4
0
0
2
0
0
2
4
