B
D
C
A
A
B
C
D
C
A
E
B
B
C
D
A
D
C
A
B
A
D
B
C
B
A
D
C
D
A
C
B
D
E
B
A
B
D
C
A
D
B
C
A
A
B
C
D
B
D
A
C
C
D
B
A
B
D
C
A
B
E
D
A
C
D
A
B
B
D
A
C
C
E
A
B
C
A
B
D