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.math.BigDecimal;
import java.util.Scanner;

public class Main {
	public static void main(String[] args){
		Scanner scan = new Scanner(System.in);
		double r = Double.parseDouble(scan.nextLine());
		double dbCir = (Math.PI * r * 2.0);
		double dbArea = (Math.PI * r * r);
		BigDecimal x = new BigDecimal(dbCir);
		BigDecimal y = new BigDecimal(dbArea);
		//x = x.setScale(6, BigDecimal.ROUND_HALF_UP);
		//y = y.setScale(6, BigDecimal.ROUND_HALF_UP);

		System.out.println(x + " " + y);
		scan.close();
	}
}