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:
r = map(float,raw_input().split())
print  '%.10f'%(r[0]*r[0]*3.14159265358979323846) 
print '%.10f'%(r[0]*2*3.14159265358979323846)