using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;

namespace zadanie1
{
    public class samochod
    {
        string marka, model;
        int ilosc_drzwi;
        double sredn_spalenie;
        int pojemnosc_silnika;
        int liczba_samochodow = 0;
        public samochod(string marka_ = "", string model_ = "", int ilosc_drzwi_ = 0)
        {
            this.marka = marka_;
            this.model = model_;
            this.ilosc_drzwi = ilosc_drzwi_;
            liczba_samochodow++;
        }

        int get_number() { return liczba_samochodow; }
        public string get_marka() { return marka; } public string get_model() { return model; }
    }
}

///////////////////////

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;

namespace zadanie1
{
    class Program
    {
        static void Main(string[] args)
        {
            samochod S = new samochod("Mazda", "RX-8", 2);
            samochod S1 = new samochod("BMW", "M4", 2);
            samochod S2 = new samochod("Audi", "RS-6 Evhotech", 4);
            Console.WriteLine(S.get_number());
            Console.ReadLine();
        }

    }

}