using System;

public class program

{

    delegate int Mathop(int n1, int n2, int n3);

    public static void Main(String[] args)

    {

        /*Mathop op = delegate (int a, int b)   //Anonymous Method

        {

            return a*b;

        };

        Console.WriteLine(op(20, 20));*/

        Mathop op = (a,b,c) => (a*b*c);     //Lambda Expression

        Console.WriteLine(op(20, 20, 30));

    }

}