text: 
  import sys
  
  
  def main():
    name = sys.argv[1]
    greeting = sys.argv[2]
    message = sys.argv[3]
  
    with open(name_file) as f:
      with open(greeting_file) as g:
        with open(farewell_file, 'w') as o:
          o.write('Once I said "{}" to you, now I say Goodbye {}!\n'.format(
              g.read().strip(),
              f.read().strip()))
  
  
  if __name__ == '__main__':
    main()
  