using System;

public class Program

{ 

    public class Ball

    { 

        public string brand;

        public string model;

        public string color;

    }

    public static void Main(string [] args)

    {

        Ball ball= new Ball();

        ball.brand="nike";

        Console.WriteLine("markata na topkata e " + ball.brand);

        ball.model="basketball";

        Console.WriteLine("modela na topkata e " +ball.model);

        ball.color="orange";

        Console.WriteLine("modela na topkata e " +ball.color);

    }

}