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:
#!/usr/bin/env python
# coding: utf-8
import math

def main():
	r = float(raw_input())
	print "%.6f %.6f" % (math.pi * r * r, math.pi * 2 * r)

if __name__ == '__main__':
	main()