[Community Puzzle] The Other Side

Coding Games and Programming Challenges to Code Better

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Created by @Suryyy,validated by @Machiavelli_5040,@Klimpergeist and @Cakeisalie5.
If you have any issues, feel free to ping them.

The validator 9 is failed for more information an idea on the matrix h*n?

I don’t find anything special about that validator.

an approach on this validator in a message