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