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

l = raw_input()


r = float(l)

import math
S = math.pi * r**2

C = 2 * math.pi * r

print "%f %f" %(S, C)