using System;

public class Program

{

    public delegate int MathOperation(int a, int b);

    static int Add(int num1, int num2)

    {

        return num1 + num2;

    }

    public static void Main()

    {

        MathOperation mathDelegate = Add;

        int one = 1;

        int two = 2;

        int sum = mathDelegate(one, two);

        Console.WriteLine(sum);

    }

}