N
G
N
A
G
G
B
A
B
B
N
A
G
S
A
B
G
B
G
N
A
S
G
A
G
G
A
A
A
A
N
N
B
G
B
B
B
G
N
A
A
S
N
B
N
S
N
B
A
S
A
S
B
B
G
A
G
N
B
N
N
A
G
B
N
S
S
S
G
B
S
S
N
S
S
G
A
B
S
A
A
G
B
B
S
S
S
B
N
G
S
A
N
G
S
G
N
N
S