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