public class FloatingPoints
{
   public static void Main()
   {
   	  double a = 0.1d;
   	  double b = 0.2d;
   	  
      System.Console.WriteLine(a + b == 0.3);
      System.Console.WriteLine((a + b).ToString("G"));
      System.Console.WriteLine((a + b).ToString("R"));
   }
}