#include <iostream>
#include <string>
#include <cctype>
#include <algorithm>
 
int main() {
    const std::string s { "abcDEFf" };
    std::cout << std::boolalpha;
    std::cout << std::all_of(begin(s), end(s), isupper) << std::endl;
    std::cout << std::any_of(begin(s), end(s), isupper) << std::endl;
    std::cout << std::none_of(begin(s), end(s), isupper) << std::endl;
}