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