using System;

public class Program

{

    public static void Main()

    {

       Console.WriteLine ("............Hoa dơn phong tro...........");

        int Tenkh;

       Console.WriteLine (" Nhap ten khach hang : ");

       Tenkh = Convert.ToInt32(Console.ReadLine( ));

         int tienphong = 2000000;

       Console.Write("\n Nhap hoa don tien phong :" );

       tienphong = Convert.ToInt32(Console.ReadLine( ));

       int tiendien = 1000000;

      Console.Write("\n Nhap hoa don tien dien : ");

      tiendien = Convert.ToInt32(Console.ReadLine( ));

       int tien_nuoc = 1000000;

      Console.Write("\n Nhap hoa don tien nuoc : ");

      tien_nuoc = Convert.ToInt32(Console.ReadLine( ));

     Console.WriteLine("..............Xuất hoa don.........");

     Console.Write("hoa don :");

    }

}

​