#include <clocale>
#include <codecvt>
#include <fmt/format.h>
#include <fmt/xchar.h>
#include <iostream>
#include <string>

std::locale utf8loc(std::locale(), new std::codecvt_utf8<wchar_t>);
using namespace std;

int squared(int j) noexcept {
	return j * j;
}

int main(int argc, char **argv) {
	setlocale(LC_ALL, "en_US.UTF-8");
	wcout.imbue(utf8loc);
	wcin.imbue(utf8loc);

	for (int i = 1; i <= 10; ++i) {
		wcout << fmt::format(L"{0:d}^2 = {1:d}", i, squared(i)) << endl;
	}
	return 0;
}