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Puzzle ZFND 



??

What are the next three characters in this sequence:

2  1  F  1  1  F  0  1  F  9  F  {?}

Puzzle Copyright © Kevin Stone

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Answer
8 F 7.

This is the sequence F7, F8, F9, F10, F11, F12, written backwards.

Often seen on a computer keyboard.

21F 11F 01F 9F 8F 7F

 

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