class Program
{
  delegate decimal FindArea();
  static void Main(string[] args)
  {
    Circle circleOne = new Circle(5);
    decimal c1Area = circleOne.FindArea();
  }

  class Circle
  {
    public int radius;
    public FindArea findArea;

    public Circle(int x) // Constructor
    {
      radius = x;
      findArea =
      ( () =>
      {
        radius += 10;
        decimal area = (decimal)(3.14 * radius * radius);
        Console.WriteLine("Area of a circle with radius " + radius + " is " + area);
        return area;
      });
    }
  }
}