7
1
0
7
0
9
1
1
1
0
8
9
8
0
1
0
9
1
0
1
7
9
8
7
0
8
1
0
9
9
9
8
7
8
0
8
8
7
9
9
9
7
8
1
1
0
7
8
7
7