


from __future__ import annotations

from typing import Any





class       A    (   A_ ):
							pass





class       A    :


							def __init__(self      ,				lowerCAmelCase					):
									__lowercase=			data
									__lowercase=			None


							def __iter__(self					):
									__lowercase=			self
									__lowercase=			[]
									while node:
											if node in visited:
													raise ContainsLoopError
											visited.append(lowerCAmelCase					)
											yield node.data
											__lowercase=			node.next_node







							@property
							def 			_A       (self					):
									try:
											list(self					)
											return False
									except ContainsLoopError:
											return True


if __name__ == "__main__":
	lowerCAmelCase           =		Node(1)
	lowerCAmelCase           =		Node(2)
	lowerCAmelCase           =		Node(3)
	lowerCAmelCase           =		Node(4)
	print(root_node.has_loop)  # False
	lowerCAmelCase           =		root_node.next_node
	print(root_node.has_loop)  # True

	lowerCAmelCase           =		Node(5)
	lowerCAmelCase           =		Node(6)
	lowerCAmelCase           =		Node(5)
	lowerCAmelCase           =		Node(6)
	print(root_node.has_loop)  # False

	lowerCAmelCase           =		Node(1)
	print(root_node.has_loop)  # False










def        _lowerCamelCase(	lowercase__   , lowercase__ = " "	)						->	list:

		'''simple docstring'''







		__lowercase=			[]

		__lowercase=			0
		for index, char in enumerate(lowercase__	):
				if char == separator:
						split_words.append(string[last_index:index]	)
						__lowercase=			index + 1
				elif index + 1 == len(lowercase__	):
						split_words.append(string[last_index : index + 1]	)
		return split_words


if __name__ == "__main__":
	from doctest import testmod

	testmod()






