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