Problem: Write a program which calculates the area and circumference of a circle for given radius r.

Constraints

* 0 < r < 10000

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.

Examples

Input

2


Output

12.566371 12.566371


Input

3


Output

28.274334 18.849556

Solution (in PYTHON):

Solution:
# -*-coding:utf-8

import fileinput
import math

def main():

    a = float(input())
    PI = math.pi
    area =  a * a * PI
    circum = 2 * a * PI

    print('%lf %lf' % (area, circum))


if __name__ == '__main__':
    main()