using System;

​

public class Program

{

    public delegate void Op();

    public static Op generateOp(String reg)

    {

        return () => {

            Console.WriteLine("Modify using reg " + reg);

        };

    }

    public static void Main()

    {

        Op opA = generateOp("A");

        Op opB = generateOp("B");

        opA();

        opB();

    }

}