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;

class Main{
     public static void main(String[] args){

        Scanner as = new Scanner(System.in);
       
        double r,s,t;

       
           
        r = as.nextDouble();
           
           
        s=3.141592653589*r*r;
        t=2.0*3.141592653589*r;

        System.out.println(s+" "+t);           

           
 }
 
}