




"""simple docstring"""


from typing import Any






class  lowercase:







	'''simple docstring'''





	def __init__(    self:		Dict,				a_:		Any		):




			'''simple docstring'''



			_snake_case							:		Dict								=  data
			_snake_case							:		Optional[Any]								=  None







class  lowercase:







	'''simple docstring'''





	def __init__(    self:		str		):




			'''simple docstring'''



			_snake_case							:		Any								=  None


	def 			UpperCamelCase_       (    self:		Any		):




			'''simple docstring'''



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


	def 			UpperCamelCase_       (    self:		Union[str, Any],				a_:		Any		):




			'''simple docstring'''



			_snake_case							:		Optional[Any]								=  Node(a_		)
			_snake_case							:		Union[str, Any]								=  self.head
			_snake_case							:		List[Any]								=  new_node


	def 			UpperCamelCase_       (    self:		Tuple,				a_:		List[str],				a_:		Union[str, Any]		):




			'''simple docstring'''



			if node_data_a == node_data_a:
					return
			else:
					_snake_case							:		int								=  self.head
					while node_a is not None and node_a.data != node_data_a:
							_snake_case							:		List[Any]								=  node_a.next

					_snake_case							:		List[Any]								=  self.head
					while node_a is not None and node_a.data != node_data_a:
							_snake_case							:		List[Any]								=  node_a.next

					if node_a is None or node_a is None:
							return

					_snake_case							:		int								=  node_a.data, node_a.data


if __name__ == "__main__":
					A_      =    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"""


def  UpperCAmelCase__	(snake_case__							: int = 1_00_00_00   ):
  """simple docstring"""

  _snake_case							:		Dict								=  [i - 1 for i in range(limit + 1   )]

  for i in range(2		,       limit + 1   ):
    if phi[i] == i - 1:
      for j in range(2 * i		,       limit + 1		,       snake_case__   ):
        phi[j] -= phi[j] // i

  return sum(phi[2 : limit + 1]   )


if __name__ == "__main__":
     print(solution())


