text: ###############################################################################
  #
  #   This line is a COMMENT -- a note to human readers of this file.
  #   When the Python interpreter RUNS (i.e. EXECUTES) a program, it ignores
  #   everything from a  #  (hash) mark to the end of the line with the  #  mark.
  #
  #   We call files that have Python code in them MODULES.
  #   Line 15 of this module (look at it now) prints (displays) the STRING
  #      Hello, World
  #   on the Run window.
  #
  #   Anything surrounded by quote marks (single or double) is a STRING.
  #
  ###############################################################################
  print("Hello, World")
  
  ###############################################################################
  # TODO: 1.
  #   (Yes, that means for YOU to DO things per these instructions:)
  #  _
  #   Run this module by right clicking anywhere in this window
  #   and selecting
  #        Run 'name of file'
  #   Or, use the keyboard shortcut:  Control + Shift + Function-F10.
  #  _
  #   After running, find the Run window and confirm that
  #        Hello, World
  #   did indeed get printed (displayed) on that window.
  ###############################################################################
  
  ###############################################################################
  # TODO: 2.
  #   Notice the small horizontal BLUE bars on the scrollbar-like thing
  #   on the right.  Each blue bar indicates a thing "to do" in this module.
  #  _
  #     a. You can use the blue bars to go from one _TODO_ to the next
  #        by clicking on the blue bars.  ** Try that now. **
  #  _
  #     b. When you have completed a _TODO_, you should change the word
  #          _TODO_      (ignore the underscores on this line)
  #        to
  #          DONE
  #        Try it now on line 18 above, and note that its blue bar on the
  #        scrollbar-like thing to the right goes away soon thereafter.
  #  _
  #   If you change each _TODO_ to DONE like this, you can tell when you
  #   have finished all the exercises in a module -- there will be no
  #   blue bars left on the scrollbar-like thing to the right.
  #  _
  #   You have now completed _TODO_ #2, so change its _TODO_ on line 32 to DONE
  #   (and likewise for all forthcoming TODOs in this course).
  ###############################################################################
  
  ###############################################################################
  # TODO: 3.
  #   Add another   print   statement below this comment.
  #   It should print any string that you want (but keep it polite and G-rated!)
  #  _
  #   Test your code by re-running this module, either by proceeding
  #   as you did when you ran this module the first time,
  #   or by pressing the green rightward-pointing triangle
  #   that is the "Play" button on the toolbar at the top of this window.
  #   Look at the  Run  window to be sure that your string printed as expected.
  ###############################################################################
  
  ###############################################################################
  # TODO: 4.
  #   Add yet another   print   statement, putting it below this comment.
  #   This one should print the *product* of 3,607 and 34,227.
  #   Let the computer do the arithmetic for you (no calculators!).
  #   You do NOT have to use strings for this, so no quotation marks!
  #  _
  #   TEST your code by re-running this module, then asking someone
  #   whom you trust:
  #      What number did your   print   display for this _TODO_?
  #   (HINT: It is an INTERESTING number.)  Get help if your value is wrong.
  ###############################################################################
  
  ###############################################################################
  # TODO: 5.
  #   Look at the list of files in the Project window (to the left).
  #   Note that this file:
  #      m2_todo_and_commit_push.py
  #   is now displayed in BLUE (or the color you may have set for changed files).
  #  _
  #   The BLUE font color means that you have made changes to this file which
  #   have not yet been COMMITTED to version control and PUSHED to the cloud.
  #  _
  #   COMMIT and PUSH your work by:
  #     1. Select   VCS   from the menu bar (above).
  #     2. Choose  Commit  from the pull-down menu that appears.
  #     3. In the  Commit Changes  window that pops up,
  #        press the   Commit and Push   button.
  #           (Note: If you see only a Commit button:
  #              - HOVER over the  Commit  button
  #                (in the lower-right corner of the window)
  #              - CLICK on  Commit and Push.)
  #  _
  #   COMMIT adds the changed work to the version control system
  #   on your COMPUTER.  PUSH adds the changed work into your
  #   repository in the "cloud".
  #  _
  #   PyCharm forces you to add a  Commit  message intended to describe
  #   your work to teammates, but until your team project use   Done
  #   or whatever you want for the  Commit  message.
  #  _
  #   Always PUSH (in addition to the COMMIT) so that your work
  #   is backed-up in the cloud.  If you COMMIT but forget to PUSH,
  #   you can subsequently do the PUSH by:
  #      VCS ~ Git ~ Push...
  #  _
  #   Oh, one more thing:
  #     Do you have any blue bars on the scrollbar-like thing to the
  #     right?  If so, click on each blue bar and change its _TODO_ to
  #     DONE and then run the module (to make sure you didn't break
  #     anything) and COMMIT-and-PUSH again.
  #  _
  #   You can COMMIT-and-PUSH as often as you like.
  #   DO IT FREQUENTLY; AT LEAST once per module.
  ###############################################################################
  