static void Main(string[] args)
{
Audi a = new Audi();
Console.WriteLine(a.IsEcoFriendly(false));
a.MoveNKilometers(23);
Console.WriteLine(a.Mileage);
BMW b = new BMW();
Console.WriteLine(b.IsEcoFriendly(false));
b.MoveNKilometers(45);
Console.WriteLine(b.Mileage);
Volkswagen v = new Volkswagen();
Console.WriteLine(v.IsEcoFriendly(false));
v.MoveNKilometers(88);
Console.WriteLine(v.Mileage);
Honda h = new Honda();
Console.WriteLine(h.IsEcoFriendly(false));
Skoda s = new Skoda();
Console.WriteLine(s.IsEcoFriendly(false));
Console.ReadKey();
}
