In case anyone's wondering what this is about, in the 1960s the Tryweryn Valley in Wales contained a village (Capel Celyn) which was evacuated and the valley flooded to make a new reservoir to provide water for Liverpool. There's a portion of a nearby wall painted with these words.
https://wikitravel.org/en/Welsh_phrasebook
Or rather, the orthography is - spoken Welsh is ancient, but the way of writing it with Latin letters is relatively new, so it was worked out fairly sensibly.
The actual grammar is headache-inducing, though.
However, at least all the letters are familiar. Asian languages are at least an order of magnitude harder for westerners.
When I moved here, I arrogantly stated I was going to learn Irish. I'm humbled now.