4
0
5
0
7
0
7
0
8
0
7
0
6
0
7
0
7
0
9
0
8
0
9
0
7
0
6
0
7
0
7
0
7
0
8
0
7
0
7
0
8
0
8
0
8
0
8
0
8
0
8
0
7
0
8
0
