using System;

public class Program

{

    public static void Main()

    {

        Console.WriteLine("Enter number from 0 to 3");

        var car = int.Parse(Console.ReadLine());

        string[] cars = 

        {"BMW", "Audi", "Mercedes", "Ferrari",};

        if(car == 0)

        {

            Console.WriteLine(cars[0]);

        }

        else if(car == 1)

        {

            Console.WriteLine(cars[1]);

        }

        else if(car == 2)

        {

            Console.WriteLine(cars[2]);

        }

        else if(car == 3)

        {

            Console.WriteLine(cars[3]);

        }

        else

        {

            Console.WriteLine("Invalid number");

        }

    }

}