//
//	Math symbol: pi
//	Java statement: Math.PI (P. 31)
//

import java.util.Scanner;
import java.text.DecimalFormat;

class CalCircleArea
{
	public static void main(String[] args)
	{
  	Scanner input = new Scanner(System.in);
   	DecimalFormat f2 = new DecimalFormat("0.00");

   	double radius, area, circumference;

   	System.out.print("Input radius: ");
   	radius = input.nextDouble();

   	circumference = 2. * Math.PI * radius;
   	area = Math.PI * radius * radius;

   	System.out.println("\nThe circum. is " + f2.format(circumference) );
   	System.out.println("The area is " + f2.format(area) + "\n\n\n");
 }
}