using System;

​

//delegate declaration

public delegate void MathOperations(int a, int b);

public class Program

{

    //implementation of the delegate by functions

    static void add(int a, int b){

        Console.WriteLine("Sum of nums: {0}",(a+b));

    }

    static void multi(int a, int b){

        Console.WriteLine("Multi of nums: {0}",(a*b));  

    }

    public static void Main()

    {

        int a=10;

        int b=5;

        //delegate instantiation

        MathOperations opp1 = add;

        MathOperations opp2 = multi;

        MathOperations opp = opp1+opp2;

        Console.WriteLine("value of add");

        opp1(a, b);

        Console.WriteLine("value of multi");

        opp2(a, b);

        Console.WriteLine("value of chained delegate");

        opp(a, b);

    }

}