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 -*-
"""
Created on Tue Feb 03 12:20:19 2015

@author: hirose
"""
import math

n = map(float, raw_input().split())

r = n[0]

print '%f %f' %(math.pi*r*r, 2*math.pi*r)

exit(0)