7
2
1
0
5
0
6
3
1
6
8
0
8
9
0
2
3
6
2
2
2
1
1
8
4
1
2
9
6
9
0
8
0
9
0
6
2
5
1
1
9
0
7
0
2
4
8
1
5
6
3
9
1
6
0
0
9
6
1
4