Well, for Bulgarian, there are two different keyboard mappings one can use to type cyrillic with. The typewriter layout, which nobody uses. And the phonetic lay

Well, for Bulgarian, there are two different keyboard mappings one can use to type cyrillic with. The typewriter layout, which nobody uses. And the phonetic layout, which just maps the latin characters on your keyboard to their cyrillic equivalents where appropriate, plus about half a dozen character mappings where the latin character doesn't have a cyrillic character, so it's mapped to a cyrillic character that doesn't have a latin counterpart. I'm not sure how it is in Russian, but I suspect they have the same system.