Time Limit : sec, Memory Limit : KB

# 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

• 0 < r < 10000

## Sample Input 1

2


## Sample Output 1

12.566371 12.566371


## Sample Input 2

3


## Sample Output 2

28.274334 18.849556