text: # Iterators test
  
  list =  list(range(101))
  
  # test 1
  print ('\n--- test1 ---')
  it = iter(list)
  for x in it:
  	# print (next(it)) # wrang
  	print (x, end=' ')
  
  # test2
  print ('\n\n--- test2 ---')
  import sys
  
  it = iter(list)
  while True:
  	try:
  		print (next(it), end=' ')
  	except StopIteration:
  		sys.exit()