Circle
Execution time limit is 1 second
Runtime memory usage limit is 128 megabytes
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.
Examples
Input #1
Answer #1
Submissions 6K
Acceptance rate 46%