#include <iostream>
#include <string>

using namespace std;

int main() {
    if (56 == '8') {
        cout << "It's true!\n";
    } else {
        cout << "It's false :-(\n";
    }

    char c = 'a';
    unsigned char u = 'b';
    cout << static_cast<int>(c) << " " << c << "\n";
    cout << static_cast<unsigned int>(u) << " " << u << "\n";

    string str = "Hello world!";
    cout << "length: " << str.length() << "\n";
    cout << "access: " << str[3] << "\n";
    string another_str = " Abracadabra";
    cout << str + another_str << "\n";
    cout << (str < another_str) << "\n";
    cout << str << "\n";

    string word;
    cin >> word;
    string line;
    getline(cin, line)
    cout << "Read word: " << word << "\n";
    cout << "Read line: " << line << "\n";
    return 0;
}