7
7
0
7
0
0
7
8
6
8
8
0
9
0
8
9
6
7
6
8
6
6
0
6
7
8
8
9
9
9
0
8
0
6
6
7
6
7
0
9
9
0
9
9
6
8
0
9
0
9
8
6
9
9
6
7
8
0
8
9
7
6
7
6
0
7
8
7