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