# HW1 Q6 - Calculate perimeter of circle
# Author(s): <NAME>
# Date: 01/27/2017

# Set value of constant PI
PI = 3.14

# Input radius from user
radius = float(input("Enter radius of circle: "))

# Calculate perimeter using formula
perimeter = 2 * PI * radius

# Output perimeter
print("Perimeter =", perimeter)
