The Card Number Validation hole will go live in . Why not try and solve it ahead of time?

alphafalfa

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IT guy with exploratory nerding.

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48 / 108 Holes

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12 / 58 Langs

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23 / 75 Cheevos

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Farey Sequence in AWK in Bytes Play Hole

9th in AWK and 619th overall.

Last tested .

Bytes Chars Submitted
107 107
109 109
111 111
112 112
113 113
117 117
119 119