using System;

​

interface IA

{

    void M() { Console.WriteLine("IA.M"); }

}

class IB : IA

{

    void IA.M() { Console.WriteLine("IB.M"); } // Explicit implementation

}

class IC : IA

{

    void M() { Console.WriteLine("IC.M"); } // Creates a new M, unrelated to `IA.M`. Warning

}

​

public class Program

{

    public static void Main()

    {

        IA a = new IB();

        a.M();

    }

}