2
0
4
2
0
2
0
0
0
2
0
2
0
2
2
2
0
2
2
2
2
0
4
0
0
2
2
2
2
0
2
0
0
0
2
0
0
2
2
0
4
0
2
2
2
0
2
0
2
0
2
2
0
0
0
0
4
2
2
0
4
2
0
2
0
2
13
0
0
0
0
2
2
0
2
2
2
0
4
2
4
4
2
2
2
0
0
0
4
0
2
0
0
0
0
0
0
2
0
2
2
2
2
2
2
0
15
2
2
0
4
3
2
0
4
0
4
2
0
4
4
2
0
4
2
0
0
0
0
2
0
0
4
0
0
0
2
0
0
0
2
2
0
2
4
2
0
0
2
2
2
0
2
0
0
2
4
2
22
0
0
2
2
0
2
2
2
4
0
2
0
4
0
0
0
2
0
2
0
2
11
2
4
2
0
2
2
2
2
0
0
0
2
0
0
2
2
2
0
0
0
0
2
0
2
2
2
0
2
0
2
0
0
2
0
0
2
2
2
0
0
0
2
0
0
2
2
0
0
0
2
0
0
0
2
2
4
2
0
2
2
2
0
0
0
0
0
2
0
0
4
18
2
2
2
0
4
2
0
0
0
0
2
2
4
2
0
0
2
0
0
2
0
0
4
0
4
0
5
2
0
0
2
0
0
0
0
2
