#include <iostream>
#include <locale>
#include <codecvt>
int main() {
setlocale(LC_ALL, "");
wchar_t character = L'Е';
std::wstring_convert<std::codecvt_utf8<wchar_t>> converter;
std::wstring wcharacter = converter.from_bytes(character);
std::wcout << wcharacter << std::endl;
return 0;
}