0
8
2
8
8
6
4
8
2
8
7
3
2
2
6
7
0
1
0
5
9
6
7
6
0
2
3
5
2
8
2
8
3
7
8
0
5
7
2
1
8
5
6
7
2
2
9
9
8
4
8
8
0
9
0
7
1
3
5
9
8
7
0
7
0
5
4
2
3
8
7
5
2
0
0
6
4
5
4
2
6
7
9
2
6
9
7
1
6
1
1
8
5
1
6
5
5
2
1
5
4
There are 10 boxes that have the value of 0