using System;
using System.Linq;
using System.Collections.Generic;
namespace LaiendusMeetodid5{
  public sealed class Punkt{
    public int x, y;
  }
  
  static class PunktiMeetodid{
     public static void NihutaParemale(this Punkt p){
	    p.x++;
	 }
	 public static string Tekstina(this Punkt p){
	    return "("+p.x+", "+p.y+")";
	 }
  }
  class Proov{
     public static void Main(string[] arg){
	    Punkt p=new Punkt(){x=3, y=5};
		p.NihutaParemale();
		Console.WriteLine(p.Tekstina());
	 }
  }
}