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