using System;
class MainClass {
  public static void Main (string[] args) {
    Shape TriangleAsShape = new Triangle();
    TriangleAsShape.draw();
  }
}

class Shape {
  public void draw() {
    Console.WriteLine ("General shape has been drawn");
  }
}

class Triangle : Shape {
  public void draw() {
    Console.WriteLine ("Triangle has been drawn");
  }
}