old_contents: #!/usr/bin/python
  
  def run_test():
      intab = "aeiou"
      outtab = "12345"
      trantab = str.maketrans(intab, outtab)
  
      result = "this is string example....wow!!!";
      print(result.translate(trantab))
  
      trantab = str.maketrans(outtab, intab)
      print(result.translate(trantab))
  
  if __name__ == '__main__':
      run_test()
new_contents: #!/usr/bin/python
  
  def run_test():
      intab = 'aeiou'
      outtab = '54321'
      trantab = str.maketrans(intab, outtab)
  
      result = 'this is string example....wow!!!'
      print(result)
      print(result.translate(trantab))
  
      trantab = str.maketrans(outtab, intab)
      print(result.translate(trantab))
  
  if __name__ == '__main__':
      run_test()
subject: refactor translate example