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