using System;

​

public interface IFirst

{

    void Show();

}

​

public interface ISecond

{

    void Show();

}

​

public class MyClass : IFirst, ISecond

{

    public void Show()

    {

        Console.WriteLine("Common implementation for both interfaces.");

    }

}

​

class Program

{

    static void Main()

    {

        MyClass obj = new MyClass();

        obj.Show();  // Calls the single implementation

    }

}

​