A, D, G, J 1, 3, 6, 10 1, 1, 2, 3, 5 21, 20, 18, 15, 11 8, 6, 7, 5, 6, 4 65536, 256, 16 1, 0, -1, 0 3968, 63, 8, 3
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
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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 A B C D A B C D
1. a b c d e
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3. a b c d e
4. a b c d e
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