Czechia

🤔 Slovakia
Hint
Czech and Slovak are mutually intelligible Slavic languages with several similarities such as acute accents above vowels (á, é, í, ó, ú, ý). However, they both have some distinct letters:
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Czech uses the letters Ř, Ě and Ů;
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Slovak uses the letters Ľ, Ô, Ä, Ŕ and Ĺ.
NOTE: Acute accents on vowels are not found in South Slavic languages.

Hint
The Czech landscape is fairly rolling, with a lot of hills and altitude changes, but not a lot of tall mountains. Generally speaking, Slovakia has more mountains, but also more completely flat areas.
