S
A
C
S
R
A
C
S
C
A
C
R
C
R
A
R
C
C
S
A
A
C
R
A
C
R
A
R
R
S
A
C
S
S
R
S
A
S
S
R
S
A
S
R
A
A
S
C
R
R
R
S
A
C
R
A
C
S
S
C
C