# Runestone.Academy thinkcspy course
# Chapter 5
# Problem 19

import math

c = float(input("Today we are going to calculate pi from the dimensions of a circle. What is the circumference of your circle?"))
d = float(input("And what is the diameter of your circle?"))
               
zpi = c/d

print("The approximate value of pi from the dimensions provided is", zpi)
print("The actual (also technically approximate) value of pi is", math.pi)