#include <iostream>
#include <string>
#include <algorithm>

int main() {
    std::string const s1 { "azerty" };
    std::string const s2 { "abcdef" };
    std::string const s3 { "qwerty" };
    std::cout << std::boolalpha;
    std::cout << std::lexicographical_compare(begin(s1), end(s1), begin(s2), end(s2)) << std::endl;
    std::cout << std::lexicographical_compare(begin(s1), end(s1), begin(s3), end(s3)) << std::endl;
}