# -----------------------------------------------------------------
# Write your entire commit message above this line.
# 
# The first line should be a quick description of what you changed.
# Then leave a blank line. 
# Then, taking as many lines as you want, answer the questions 
# corresponding to your checkpoint. 
#
# Checkpoint 1: 
# - What is the difference between a value and a name? Describe 
#   a situation from everyday life where it's important to 
#   distinguish between a name and the value it refers to.
# - How might variables be useful in programming? In other 
#   words, why might you want to use a name rather than just 
#   using the value that it refers to? 
#
# Checkpoint 2: 
# - How is a function like a variable?
# - One of the most important problem-solving strategies in CS is
#   breaking down big, hard problems into lots of small, easy problems. 
#   How might functions be useful in breaking down big, hard problems? 
#   Can you think of an example?