The puzzle `819-04650c42` from #819 has to be resolved: https://github.com/php-coder/mystamps/blob/0c32c0ef2ddff5498c592abd5252e871bfc46057/src/main/java/ru/mystamps/web/service/CountryServiceImpl.java#L103-L103 The puzzle was created by Slava Semushin on 20-Jan-18