new file:   mytools.py
	new file:   p067_triangle.txt
	new file:   p60.py
	new file:   p61.py
	new file:   p62.py
	new file:   p63.py
	new file:   p64.py
	new file:   p66.py
	new file:   p67.py
	new file:   p68.py
	new file:   test.py
	deleted:    tools/mytools.py