Time Limit: 1 sec
Suppose there is a Circle. The Radius will be given.
Your task is to tell the Area of that Circle.
Note : The Area of Circle is pi * (Radius)2
Here pi = 3.1416
Input file contains a series of line. Each line contains a single integer number, the Radius of the Circle, R (R<100). Input is terminated by EOF
For each line of input print the Area of the Circle rounded to 2 decimal points in a separate line.
Problem Setter: Samia Safa Ahmed