D
C
C
C
Q
B
M
B
C
M
B
D
B
M
D
M
C
D
B
Q
C
M
D
B
Q
D
C
M
Q
C
M
C
Q
D
Q
D
D
D
M
D
M
D
D
B
M
Q
Q
D
B
M
Q
M
Q
B
Q
B
C
M
B
B
M
B
D
B
Q
C
C
Q
B
C
M
C
C
Q