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.Scanner;
import java.math.BigDecimal;
class Main
{
	public static void main(String[] args)throws Exception
	{
		Scanner scan=new Scanner(System.in);
		
		double r=scan.nextDouble();
		double sum1=0;
		double sum2=0;
				
		sum1=r*r*3.141592653589;
		sum2=r*2*3.141592653589;
		
		System.out.println(sum1+" "+sum2);
		
	}
}