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