A
A
C
B
A
M
B
Q
C
M
A
A
C
M
B
M
B
M
B
C
Q
B
Q
C
A
C
M
B
Q
B
Q
M
Q
M
Q
A
C
C
Q
B
Q
C
B
M
Q
M
A
A
A
C