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 Kotlin (judge verdict: Wrong Answer)

import java.util.*

fun main(args: Array<String>) {
	val scan = Scanner(System.`in`)

	val r = scan.nextDouble()

	println("${r * r * Math.PI} ${r * 2 * Math.PI}")
}