text: files = [
  	'63_line',
  	'63_line_nl',
  	'64_line',
  	'64_line_nl',
  	'65_line',
  	'65_line_nl',
  	'baudelaire.txt',
  	'bible.txt',
  	'empty',
  	'empty_one',
  	'void.txt',
  	'line.txt',
  	'large_file.txt',
  	'Mr._Justice_Maxell_by_Edgar_Wallace.txt',
  	'many_lines',
  	'one_big_fat_line.txt',
  	'lorem_ipsum',
  	'n.txt',
  	'over_buffer',
  	'simple',
  	'multi_in_one',
  	'expected_result',
  ]
  
  
  for filename in files:
  	with open(filename, 'rb') as f:
  		data = f.read()
  	#count1 = len([c for c in data if c == ord('\n')])
  	if data:
  		data = data.replace(b'\n', b'\n\n')
  		if data[-1] != ord('\n'):
  			data += b'\n'
  	#count2 = len([c for c in data if c == ord('\n')])
  	#print(filename, count1, count2)
  	with open("default_%s.output" % filename, 'wb') as f:
  		f.write(data)
  
  