import java.util.Scanner;

public class Balloon
{
   public static void main(String[] args)
   {
      Scanner in = new Scanner(System.in);
      System.out.print("Diameter: ");
      double diameter = in.nextDouble();
      double radius = diameter/2;
      double initial_volume = (4.0/3) * Math.PI * Math.pow(radius,2);
      double radius_1 = radius + 0.5 ;
      double volume_1 = (4.0/3) * Math.PI * Math.pow(radius_1,2);
      double growth_1 = initial_volume - volume_1;
      System.out.printf("Increase: %.0f", growth_1);
      System.out.println(growth_1);
      double radius_2 = radius_1 + 0.5 ;
      double volume_2 = (4.0/3) * Math.PI * Math.pow(radius_2,2);
      double growth_2 = volume_2 - volume_1;
      System.out.printf("Increase: %.0f", growth_2);
      System.out.println(growth_2);
   }
}