Problems

# Circle

# Circle

The radius of a circle **r** is given. Find the circumference and the area of a circle.

#### Input

The double radius of a circle **r** (**r** > **0**).

#### Output

Print in one line the circumference and the area of a circle with **4** decimal digits.

Input example #1

1.234

Output example #1

7.7535 4.7839