using System;

public class Program

{

    public static void Main()

    {

        // Declaration

        // <Data Type> <variable Name> = <Default Value>;

        int a = 10;

        int b = 6;

        int c = 9;

        int d = 0;

        // Logic

        d = a - b - c;

        // Output

        Console.Write("The difference of a and b and c");

        Console.WriteLine(d);

        Console.WriteLine("----Program End----");

    }

}