using System;
  class x
    {
        public void a()
        {
            Console.WriteLine("i love csharp");
        }
    }
    class y : x
    {
        public void a()
        {
            /* add statement here */   
 
 
base.a(); 
            Console.Write("bye");
        }
    }
    class program
    {
        static void Main(string[] args)
        {
            y obj = new y();
            obj.a();            
        }
    }

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