class Punkt
    {
        private int x, y;

        public Punkt(int x, int y)
        {
            this.x = x;
            this.y = y;
        }

        public void Wyzeruj()
        {
            this.x = 0;
            this.y = 0;
        }

        public void Przesun(int a, int b)
        {
            this.x += a;
            this.y += b;
        }

        public override string ToString()
        {
            return "(" + this.x + "," + this.y + ")";
        }
    }
    
    
    
    class Program
    {
        static void Main(string[] args)
        {

            Punkt p = new Punkt(4, 9);

            Console.WriteLine(p);

            p.Wyzeruj();

            Console.WriteLine(p);

            p.Przesun(7, 24);

            Console.WriteLine(p);



        }
    }