# [Aceto], 5 bytes, 9 numbers, safe _ are unrevealed chars<pre> __xx_ </pre> [Try it online!][TIO-jan1d1qg] [Aceto]: https://github.com/aceto/aceto [TIO-jan1d1qg]: https://tio.run/##S0xOLcn//9/It6LC6f9/AA "Aceto – Try It Online"