# Runestone Academy: How To Think Like A Computer Scientist
# Chapter 2.13 Exercises
# Exercise 8

# Write a program that will compute the area of a circle.
# Prompt the user to enter the radius and
# print a nice message back to the user with the answer.

r = int(input('Enter radius: '))
pi = 3.14159

print('The area of your circle is ' + str(pi * r * r))
