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