





from __future__ import annotations

from typing import Any



class       __lowerCAmelCase :






   def __init__(self      ,							__magic_name__      ,							__magic_name__					)  ->     None:  # noqa: A002


       '''simple docstring'''



       snake_case_		:					List[Any]			    =						item
       snake_case_		:					Any			    =						next




class       __lowerCAmelCase :






   def __init__(self					)  ->     None:


       '''simple docstring'''



       snake_case_		:					Node | None			    =						None
       snake_case_		:					Optional[Any]			    =						0






   def     lowerCamelCase						(self      ,							__magic_name__					)  ->     None:


       '''simple docstring'''



       snake_case_		:					Tuple			    =						Node(__magic_name__      ,							self.head					)
       self.size += 1






   def     lowerCamelCase						(self					)  ->     Any:


       '''simple docstring'''



       if self.head is None:
           return None
       else:
           snake_case_		:					Any			    =						self.head.item
           snake_case_		:					int			    =						self.head.next
           self.size -= 1
           return item






   def     lowerCamelCase						(self					)  ->     bool:


       '''simple docstring'''



       return self.head is None






   def __str__(self					)  ->     str:


       '''simple docstring'''



       if self.is_empty():
           return ""
       else:
           snake_case_		:					Any			    =						self.head
           snake_case_		:					int			    =						""
           snake_case_		:					list[str]			    =						[]
           while iterate:
               item_list.append(str(iterate.item					)					)
               snake_case_		:					Union[str, Any]			    =						iterate.next

           snake_case_		:					List[str]			    =						" --> ".join(__magic_name__					)

           return item_str






   def __len__(self					)  ->     int:


       '''simple docstring'''



       return self.size







class       __lowerCAmelCase :






			def __init__(self					)  ->     Dict:


							'''simple docstring'''



							snake_case_		:					Union[str, Any]			    =						[]
							snake_case_		:					Any			    =						0
							snake_case_		:					Optional[int]			    =						0






			def __str__(self					)  ->     Dict:


							'''simple docstring'''



							snake_case_		:					int			    =						'''<''' + str(self.entries					)[1:-1] + '''>'''
							return printed






			def     lowerCamelCase						(self      ,							__magic_name__					)  ->     Dict:


							'''simple docstring'''



							self.entries.append(__magic_name__					)
							snake_case_		:					List[str]			    =						self.length + 1






			def     lowerCamelCase						(self					)  ->     Tuple:


							'''simple docstring'''



							snake_case_		:					Union[str, Any]			    =						self.length - 1
							snake_case_		:					Dict			    =						self.entries[self.front]
							# self.front-=1
							# self.entries = self.entries[self.front:]
							snake_case_		:					List[str]			    =						self.entries[1:]
							return dequeued






			def     lowerCamelCase						(self      ,							__magic_name__					)  ->     Optional[Any]:


							'''simple docstring'''



							for _ in range(__magic_name__					):
											self.put(self.get()					)






			def     lowerCamelCase						(self					)  ->     Optional[Any]:


							'''simple docstring'''



							return self.entries[0]






			def     lowerCamelCase						(self					)  ->     Union[str, Any]:


							'''simple docstring'''



							return self.length
