C
A
C
S
C
P
A
B
A
P
A
A
A
C
A
S
S
B
S
S
A
P
C
B
C
S
B
B
S
P
C
A
B
P
B
A
B
B
S
C
P
A
C
S
B
P
C
C
P
C
A
P
S
B
S
A
P
C
B
P
B
P
S
S
B
A
S
S
C
P
P
P
A
B
C