using System;

class Point{
   Int32 x;
   Int32 y;

   public Int32 X{
      get{Console.WriteLine("getX() returns {0}", x); return x;}
      set{Console.WriteLine("setX({0}) called", value); x = value;}
   }   
   
   public Int32 Y{
      get{Console.WriteLine("getY() returns {0}", y); return y;}
      set{Console.WriteLine("setY({0}) called", value); y = value;}
   }
}

class App{
   public static void Main(){
      Point p = new  Point();
      p.X = 10;
      p.Y = p.X+5;
      Console.WriteLine(p.Y);
   }
}