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