#include<iostream>

int main() {
char16_t c16val{u'feff0040'};
char32_t c32val{U'00000040'};
std::cout << sizeof(c16val) << std::endl;
std::cout << sizeof(c32val) << std::endl;
std::cout << u8"\u00A9 J\u00fcrgen Wolf" << std::endl;
return 0;
}