new file:   Challenge1.py
	new file:   Challenge10.py
	new file:   Challenge11.py
	new file:   Challenge12.py
	new file:   Challenge13.py
	new file:   Challenge14.py
	new file:   Challenge15.py
	new file:   Challenge16.py
	new file:   Challenge2.py
	new file:   Challenge3.py
	new file:   Challenge4.py
	new file:   Challenge5.py
	new file:   Challenge6.py
	new file:   Challenge7.py
	new file:   Challenge8.py
	new file:   Challenge9.py