#include <iostream>
#include <vector>

int main()
{
   std::setlocale( LC_ALL, "" );
   auto v = std::vector<size_t>( 3, 0x262E ); // 3x peace symbols
   v.at( 1 ) += 0x10; // now a moon symbol

   for( auto &el : v )
       std::wcout << (wchar_t) el << " ";

    return 0;
}