using System;

namespace InterfaceDemo

{

   public interface IA

   {

     void puta();

   }

   public interface IB

   {

     void putb();

   }

   public class C: IA, IB

   {

       private int a;

       private int b;

       public C(int x, int y)

       {

           a = x;

           b = y;

       }

       public void puta()

       {

           Console.WriteLine("a = {0}", a);

       }

       public void putb()

       {

           Console.WriteLine("b = {0}", b);

       }

   }

  public class Test

   {

     public static void Main(string[] args)

     {

        C obj = new C(122, 41);

        obj.puta();

        obj.putb();

     }

   }

}

​