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