S
T
F
A
F
F
S
F
A
S
A
F
S
F
T
F
A
T
S
S
F
S
F
F
A
F
T
F
F
F
A
T
F
T
T
A
T
F
A
T
F
F
F
T
A
F
S
S
T
F
S
A
S
F
S
F
T
F
A