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