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<stdio.h>
int main(void)
{
	double a;
	scanf("%lf",&a);
	printf("%lf\n",a*a*3.141592653589);
	printf("%lf\n",a*2*3.141592653689);
	return 0;
}