S
A
S
S
B
N
N
A
A
B
B
K
N
S
A
K
K
N
B
S
K
A
N
K
B
B
S
S
A
B
S
S
N
A
N
A
K
N
N
K
K
N
B
B
K
A
B
A
K
S