1
1
5
7
8
9
9
A
B
B
B
B
C
D
D
D
D
D
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
F
F