# Circle

Write a program which calculates the area and circumference of a circle for given radius `r`.

## 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}.

## Constraints

## Sample Input 1

2

## Sample Output 1

12.566371 12.566371

## Sample Input 2

3

## Sample Output 2

28.274334 18.849556