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