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