The request seems to be about country codes related to "pays" (countries) and "ua" (likely Ukraine). If you’re asking for the ISO country code for Ukraine, or the common two-letter code, here’s the direct answer and quick context you can use. What you asked (interpreted)

• Ukraine’s ISO 3166-1 alpha-2 code: UA
• Ukraine’s ISO 3166-1 alpha-3 code: UKR
• Ukraine’s numeric code: 804

Additional notes

• The two-letter code UA is widely used on vehicle plates in some contexts, but be careful: vehicle plate codes can vary by country and region. For example, in Ukraine, the standard international vehicle registration code is UA, while some neighboring systems may display different formats.
• When listing international data, many sources also show the English short name as “Ukraine” and the official short name “Ukraine” in English as well.

If you intended something different (e.g., a different country’s code, a vehicle plate code, or a specific coding system like Internet top-level domains or currency codes), please specify which code system you need and I can tailor the answer.