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:
# encoding:utf-8
import math

r = float(input())

area = r**2*math.pi
circumference = r * 2 * math.pi

area = ('%03.6f' % area)
circumference = ('%03.6f' % circumference)

print(area),
print(circumference)