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)

function main(input) {
    var r = parseInt(input);
    var areaOfCircle = (Math.PI * r * r);
    var circumference = (2 * Math.PI * r);
    output = [areaOfCircle.toFixed(6),circumference.toFixed(6)].join(' ');
    console.log(output);
}

process.stdin.resume();
var input = '';  
process.stdin.setEncoding('utf-8');
process.stdin.on('data', function(chunk) {
  input += chunk;
});
process.stdin.on('end', function() {
  main(input);
});