S
S
P
S
P
S
D
D
P
P
D
F
F
D
D
D
S
D
P
S
S
F
F
F
F
F
F
S
S
S
P
P
P
P
S
S
S
P
S
P
F
F
F
P
F
P
D
D
D
D
F
P
F
S
D
D
D