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