PYTHON Why do these 4 functions all produce: Hello Hello Hello Hello Hello Hello

Question 3 def rangePrint10: def rangePrint20: for foo in range (3): for foo in range (0,3): for bar in range (2): for bar in range (0,2): print "Hello" print "Hello" 4 def rangePrint30: def rangePrint40: for foo in range (1,4,2): for foo in range (5,2,-1): for bar in range (0,5,2): for bar in range (4,2,-1): print "Hello" print "Hello