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