Abishek and Kannan went to a nearby shop to buy a new JIO, unfortunately the shop keeper had only one JIO sim. Both of them wanted it so badly. In order to resolve the conflict, The shopkeeper said whoever comes AROUND THE WORLD first get's the new JIO. Assume that the world is a perfect sphere. Given the radius of the world, calculate the distance to be traveled by Abishek or Kannan inorder to get the JIO first.
Note: The shop is located in the Equator
Constrains
1 <= T <= 1000
1 <= Fi <= 1000
Input Format
First line of every input is an Integer, T - Representing number of Test Cases
The next T lines contains a floating point value Fi - Representing the Radius of the World
Output Format
T lines, where each line displays the Total distanced to be traveled, rounded off to 2 decimal places
Note
Use Pi = 22/7