# Lab 1, Task 3

1. course = course + 1      # first, the right-hand side is evaluated:
       /\     111  + 1      #    course is replaced with its current value
        \        112        #    the addition is carried out
         ---------+         # then, the final value is assigned back to course


   print('maybe you will take CS', course, 'next semester')
                     |               |           |
                     |               |           |   # expressions are evaluated
                     V               V           V
         'maybe you will take CS'   112    'next semester'

   # Then, the final values of the expressions are displayed, separated
   # by spaces. The quotes surrounding the strings are not displayed:

   maybe you will take CS 112 next semester

2a. weeks (without the quotes) is a variable.
    'weeks' is a string.

2b. It prints 5 because we're using integer division (//), which truncates
    anything after the decimal in the result.

2c. days / 7

3-5: see the separate solutions for lab1task2.py