O
C
C
P
P
O
P
P
C
P
P
P
C
P
D
D
D
P
C
P
P
C
M
O
P
D
P
C
D
P
C
M
C
C
C
M
D
C
D
D
C
D
M
M
O
D
P
C
M
M
P
M
P
M
M
C
M