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 JavaScript (judge verdict: Wrong Answer)

var input=require("fs").readFileSync("/dev/stdin","utf8");

input=input.split("\n");
var r=(input[0]);
var o=3.141592653589;

console.log(r*r*o.toFixed(6)+" "+2*r*o.toFixed(6));