namespace atobbtoa
{
    class Program
    {
        static void Main(string[] args)
        {
            a aobj = new a();
            aobj.method1(); 
        }
    }
    class a :b
    {
       public  void method1()
        {
            Console.Write("veera");
        }
    }
    class b : a
    {
       public  void method2()
        {
            Console.Write("veera");
        }
    }
}