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.util.*;
public class Main{
	Scanner sc = new Scanner(System.in);
	double r;
	void e(){
		r=sc.nextDouble();
		
		System.out.print(r*r*3.14);
		System.out.print(" ");
		System.out.println(2*3.14*r);
		
	}
	
	public static void main(String[] args){     
		new Main().e();     
		} 
	}