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.InputStreamReader;
import java.math.BigDecimal;

public class Main {
    public static void main(String[] args) throws Exception {
        // Here your code !
        BufferedReader br = new BufferedReader(new InputStreamReader(System.in));
        String line = br.readLine();
        BigDecimal bm = new BigDecimal(line);
        BigDecimal circum = new BigDecimal(bm.toPlainString());
        circum = circum.multiply(new BigDecimal(2)).multiply(new BigDecimal(Math.PI));
        BigDecimal area = bm.multiply(bm).multiply(new BigDecimal(Math.PI));

        System.out.println(circum.toPlainString());
        System.out.println("a");
        System.out.println(area.toPlainString());
    }
}