//PROGRAM

public class PROGRAM {
    public static void main(String args[])
    {
        Samochod s = new Samochod("Honda", 1970);
        Samochod s2 = new Samochod("Honda", 1970);
        Paliwowe s3 = new Paliwowe("Honea", 1970, "Benza");
        System.out.println(s.compareTo(s3));
        System.out.println(s3);
    }
}


//SAMOCHOD

public class Samochod implements Comparable<Samochod>{
    private String marka;
    private int rok;

    public Samochod(String marka, int rok)
    {
        this.marka = marka;
        this.rok = rok;
    }

    @Override
    public String toString()
    {
        return marka + " " + rok;
    }

    @Override
    public boolean equals(Object o)
    {
        if(this==o)
        {
            return true;
        }
        if(o==null)
        {
            return false;
        }
        if(this.getClass() != o.getClass())
        {
            return false;
        }
        Samochod s = (Samochod)o;
        if(!this.marka.equals(s.marka))
        {
            return false;
        }
        if(this.rok != s.rok)
        {
            return false;
        }
        return true;
    }

    @Override
    public int compareTo(Samochod o)
    {
        return this.marka.compareTo(o.marka);
//      if(this.rok > o.rok)
//          return 1;
//      else if(this.rok < o.rok)
//          return -1;
//      return 0;
    }
}

//PALIWOWE


public class Paliwowe extends Samochod {
    private String paliwo;

    public Paliwowe(String marka, int rok, String paliwo)
    {
        super(marka, rok);
        this.paliwo = paliwo;

    }

    @Override
    public String toString()
    {
        return super.toString()+ " " +paliwo;
    }


}