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