1
1
1
1
1
1
1
1
1
3
6
6
7
7
8
8
9
9
A
C
C
C
C
C
D
E
F
F
F
F
F
F
F
F
F
F
F
F
F
F
F
F
F
F
F
F
F
F
F
F
F
F
F
F
F
F
F