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 <iostream>
#include <stdio.h>
#include <cmath>

double r;
int main(){
	while(std::cin >> r){
		printf("%.6f %.6f\n", r*r*M_PI,2*r*M_PI);		
	}
}