X
S
B
O
X
S
B
B
B
O
S
B
L
O
X
O
L
B
X
B
O
L
S
B
X
S
X
B
L
L
S
L
S
S
O
O
S
L
O
L
X
O
X
X
S
B
X
L
S
L
X
B
O
L