input: Write a function to determine if one parameter is greater than the other and then print the greater value. 
  def printMax(parameter_1, parameter_2):
      if parameter_1 > parameter_2:
          print(parameter_1)
      else:
        print(parameter_2)
  assert printMax(7, 9)==None
  assert printMax(10, 5)==None
output: def printMax(parameter_1, parameter_2):
      if parameter_1 > parameter_2:
          print(parameter_1)
      else:
          print(parameter_2)