# [Japt], 8 bytes

    r"%d+$"V

[Try it online!][TIO-j3l98imy]

[Japt]: https://github.com/ETHproductions/japt
[TIO-j3l98imy]: https://tio.run/##y0osKPn/v0hJNUVbRSns/3@lxKRkQyNjJR0FJRNTMyUA "Japt – Try It Online"