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 <bits/stdc++.h>
using namespace std;
int main(){
	double pi=acos(-1.0);
	double a;cin>>a;
	printf("%f %f\n",pi*a*a,2*pi*a);	
	return 0;
}