






'''simple docstring'''







from typing import Any

class _lowercase     :




							def __init__(							self:    Tuple      ,							UpperCamelCase__:    int					):
														lowerCamelCase__ :     Optional[int]	  =	data
														lowerCamelCase__ :     Optional[Any]	  =	None



class _lowercase     :




							def __init__(							self:    int					):
														lowerCamelCase__ :     Tuple	  =	None




							def 		lowerCamelCase_    (							self:    List[str]					):
														lowerCamelCase__ :     Any	  =	self.head
														while temp is not None:
																					print(temp.data      ,							end=""" """					)
																					lowerCamelCase__ :     int	  =	temp.next
														print()




							def 		lowerCamelCase_    (							self:    str      ,							UpperCamelCase__:    str					):
														lowerCamelCase__ :     int	  =	Node(lowerCAmelCase_					)
														lowerCamelCase__ :     Dict	  =	self.head
														lowerCamelCase__ :     List[str]	  =	new_node




							def 		lowerCamelCase_    (							self:    int      ,							UpperCamelCase__:    str      ,							UpperCamelCase__:    List[Any]					):
														if node_data_a == node_data_a:
																					return
														else:
																					lowerCamelCase__ :     str	  =	self.head
																					while node_a is not None and node_a.data != node_data_a:
																												lowerCamelCase__ :     List[Any]	  =	node_a.next

																					lowerCamelCase__ :     str	  =	self.head
																					while node_a is not None and node_a.data != node_data_a:
																												lowerCamelCase__ :     Tuple	  =	node_a.next

																					if node_a is None or node_a is None:
																												return

																					lowerCamelCase__  ,		lowerCamelCase__ :     str	  =	node_a.data, node_a.data


if __name__ == "__main__":
		_A     :      Tuple   					=LinkedList()
		for i in range(5, 0, -1):
				ll.push(i)

		ll.print_list()

		ll.swap_nodes(1, 4)
		print('''After swapping''')
		ll.print_list()









'''simple docstring'''







from __future__ import annotations

from typing import Any

class _lowercase     (    _lowercase		):
							pass



class _lowercase     :




							def __init__(							self:    Optional[int]      ,							UpperCamelCase__:    Any					):
														lowerCamelCase__ :     Any	  =	data
														lowerCamelCase__ :     Node | None	  =	None




							def __iter__(							self:    List[Any]					):
														lowerCamelCase__ :     Optional[Any]	  =	self
														lowerCamelCase__ :     int	  =	[]
														while node:
																					if node in visited:
																												raise ContainsLoopError
																					visited.append(UpperCamelCase__					)
																					yield node.data
																					lowerCamelCase__ :     List[str]	  =	node.next_node




							@property
							def 		lowerCamelCase_    (							self:    Optional[Any]					):
														try:
																					list(self					)
																					return False
														except ContainsLoopError:
																					return True


if __name__ == "__main__":
			_A     :      Any   					=Node(1)
			_A     :      Optional[int]   					=Node(2)
			_A     :      Dict   					=Node(3)
			_A     :      Optional[Any]   					=Node(4)
			print(root_node.has_loop)  # False
			_A     :      Any   					=root_node.next_node
			print(root_node.has_loop)  # True

			_A     :      Dict   					=Node(5)
			_A     :      Union[str, Any]   					=Node(6)
			_A     :      str   					=Node(5)
			_A     :      int   					=Node(6)
			print(root_node.has_loop)  # False

			_A     :      Optional[Any]   					=Node(1)
			print(root_node.has_loop)  # False

