#include <iostream>
#include <string>
using namespace std;

class Car {
public:
    string name;
    string engine;
    string gearbox;
    int wheels;
    int year;
    bool working = false;

    Car(string n, string e, string gb, int wh, int y) {
        name = n;
        engine = e;
        gearbox = gb;
        wheels = wh;
        year = y;
    }

    ~Car(){};

    void start_engine() {
        working = true;
    }

    void stop_engine() {
        working = false;
    }
};

int main()
{
    Car renault("Renault Logan", "1.4", "Auto", 4, 2015);
    Car volvo("volvo s60", "2.0", "Robot", 4, 2004);

    renault.start_engine();

    cout << renault.working << endl;
    cout << volvo.working;