N
H
N
N
N
B
N
N
N
N
A
A
B
N
N
N
N
D
N
A
H
B
H
A
N
D
N
N
N
H
A
D
A
N
N
H
N
H
B
D
B
A
A
H
N
B
N
A
N
H
H
N
B
H
H
B
N
N
A
N
H
H