using System;

public class Program

{

    delegate void FunctionPointer(String str);

    static void HelloWorld(string str)

    {

        Console.WriteLine(str);

    }

    public static void Main()

    {

        FunctionPointer fp=delegate(string str){

            Console.WriteLine(str); 

        };

        FunctionPointer ff=s=>Console.WriteLine(s);

        ff("Hello Lambda");

        fp("Hello Anonymous Delegate");

        fp=HelloWorld;

        fp("Hello World");

    }

}