Problem:
Circle

Write a program which calculates the area and circumference of a circle for given radius r.

Input

A real number r is given.

Output

Print the area and circumference of the circle in a line. Put a single space between them. The output should not contain an absolute error greater than 10-5.

Constraints

0 < r < 10000

Sample Input 1

2

Sample Output 1

12.566371 12.566371

Sample Input 2

3

Sample Output 2

28.274334 18.849556

Solution in JAVA (judge verdict: Wrong Answer)

import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStreamReader;

public class Main {
	public static void main(String[] args) {
		BufferedReader input = new BufferedReader(new InputStreamReader(System.in));


		  try{


			  String ab;
              
			  double r;
			  
			  double pi=3.141592653589;
			  
              double menseki=0;
              double ensyuu=0;
			  
			  ab = input.readLine();
		      r= Double.parseDouble(ab);
		      menseki=r*r*pi;
		      ensyuu=2*r*pi;


			  System.out.println(menseki+" "+ensyuu);


		    }catch(IOException e) {   System.out.println("Exception : " + e);
		    }

	}
}