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