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 CPP):

Solution:
#include<cstdio>

int main(){
  double r;
  double pai = 3.141592653589;

  scanf("%lf", &r);
  printf("%f %f\n", r*r*pai, r*pai*2);

  return 0;
}