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