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