static void Main(string[] args) { Console.WriteLine("Triangle"); var triangle = new Triangle { symbol = '$', a = 5 }; triangle.Draw(); Console.WriteLine(); Console.WriteLine("Rectrangl \n"); var rectangle = new Rectangle { symbol = '-', a = 5, b = 10 }; rectangle.Draw(); Console.WriteLine(); Console.WriteLine("Line \n"); var line = new Line { symbol = '-', a = 5 }; line.Draw(); }