B
M
A
A
L
M
S
L
S
S
B
B
S
B
M
S
B
A
B
M
S
A
S
L
A
A
L
L
M
L
S
M
S
L
B
A
L
A
M
B
M
L
A
L
A
A
A
S
M
M
A
S
M
B
L
S
S
M
B
A
L
B
L
B
L
B
S
L
M
S
B
B
M
A