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.*;

public class Main{
    public static void main(String args[]){
        BufferedReader reader = new BufferedReader(new InputStreamReader(System.in));
        try{
            String line = reader.readLine();
            double radius = Integer.parseInt(line);
            double x = Math.PI;
            double area = radius * radius * x;
            double circle = 2 * radius * x;
            System.out.print(area);
            System.out.print(" ");
            System.out.println(circle);
        } catch(IOException e){
            System.out.println(e);
        } catch(NumberFormatException e){
            System.out.println("Not 0<r<10000");
        }
    }
}