using System;

​

public class tonumbers

{

    public int n1;

    public int n2; 

        public void show()

        {       

            Console.WriteLine("n1:{0},n2:{0}", this.n1,this.n2);

        }   

    public void add()

        {       

            Console.WriteLine("total:{0},n2:{0}", this.n1+this.n2);

        }   

    public tonumbers()

    {

        Console.WriteLine("tonumbers crated!1");

    }

    public tonumbers(int n1, int n2)

    {

        Console.WriteLine("tonumbers crated!2");

    }

}

​

public class Program

{

    public static void Main()

    {

        tonumbers tonumbers1=new tonumbers(); 

        tonumbers1.n1=10;

        tonumbers1.n2=6;

        tonumbers1.show();

        tonumbers1.add();

        tonumbers tonumbers2=new tonumbers();

        tonumbers2.n1=101;

        tonumbers2.n2=314;

        tonumbers2.show();

        tonumbers2.add();

​

        Console.WriteLine("Hello World");

    }

}