Card Number Validation in K in Chars Play Hole
10th in K and 307th overall.
Last tested .
| Bytes | Chars | Submitted |
|---|---|---|
| 38 | 38 | |
| 40 | 40 | |
| 43 | 43 | |
| 47 | 47 | |
| 48 | 48 |
rak1507 🇬🇧
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