Added parameters from example
Added parameters from example

pheanex/xpython,mweb/python,jmluy/xpython,exercism/python,N-Parsons/exercism-python,exercism/python,pheanex/xpython,mweb/python,smalley/python,smalley/python,behrtam/xpython,behrtam/xpython,exercism/xpython,exercism/xpython,jmluy/xpython,N-Parsons/exercism-python