using System;

public interface Square

{

    void area();

}

public interface Rectangle

{

    void parameter(); 

}

public class Test:Square,Rectangle

{

    public void area()

    {

        Console.WriteLine("area of Square");

    }

    public void parameter()

    {

        Console.WriteLine("parameter of square");

    }

    public static void Main()

    {

        Test obj = new Test();

        obj.area();

        obj.parameter();

    }

}

​