Tracy loves Donuts. She purchased a lots of Donuts for her birthday party. She learnt to calculate the area of the circle a few days back and she is fascinated to know the area of the donuts as well !! Help her finding the area of the Donuts…..
-----Input:-----
- First line will contain, number of testcases. Then the testcases follow. 
- Each testcase contains of a single line of input, where in you have to provide the RADIUS of the Donuts. 
-----Output:-----
For each testcase, output in a single line answer is the AREA of the Donut.
-----Constraints-----
1 <= Radius <= 20.
-----Sample Input:-----
2
5 
12
-----Sample Output:-----
78.5
452.16
number_of_test_cases = int(input())

for i in range(0,number_of_test_cases):
    radius = int(input())
    area = 3.14 * radius * radius
    print(round(area,2))
number_of_test_cases = int(input())

for i in range(0,number_of_test_cases):
    radius = int(input())
    area = 3.14 * radius * radius
    print(round(area,2))