using System;

public class Program

{

    public static void Main()

    {

        Console.WriteLine("Hello World");

        new Car();

    }

}

​

partial class Car

{

    public int a;   

}

​

partial class Car

{

    public int b;

}

​

partial class Car

{

    public Car()

    {

        a = 4;

        b = 5;

        Console.WriteLine(a + b);

    }

}

​

​