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20 questions
A
B
C
D
A
B
C
D
E
A
B
C
D
E
A
B
C
D
3
5
2
-2
A
B
C
D
E
A
B
C
D
A
B
C
D
E
A
B
C
D
A
B
C
D
A
B
C
D
A
B
C
D
A
B
C
D
A
B
C
D
A
B
C
D
A
B
C
D
12
10
8
16
A
B
C
D
A
B
C
D
E
A
B
C
D
E
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