Adding Nick's assignments for Monday 12/1

Adding both the ack.py and the series.py programs for the assignments due Monday, December 1st.
Review [PEP8: Maximum Line Length](https://www.python.org/dev/peps/pep-0008#maximum-line-length) and consider using [block comments instead of inline](https://www.python.org/dev/peps/pep-0008#block-comments).