code: 
  
  
  from __future__ import annotations
  
  from collections.abc import Iterable
  from dataclasses import dataclass
  from typing import Any
  
  
  
  
  class 					_UpperCamelCase :
  
  
  
  
  
  
  
  							'''simple docstring'''
  							_A  				=  ("_front", "_back", "_len")
  
  
  
  
  							@dataclass
  							class 					_UpperCamelCase :
  
  
  
  
  
  
  
  														'''simple docstring'''
  														_A  				=  None
  														_A  				=  None
  														_A  				=  None
  
  
  
  
  							class 					_UpperCamelCase :
  
  
  
  
  
  
  
  														'''simple docstring'''
  														_A  				=  ("_cur",)
  
  
  
  
  
  
  
  														def __init__(		self  :				Tuple		,				SCREAMING_SNAKE_CASE_  :				Deque._Node | None		):
  																				_a     =			cur
  
  
  
  
  
  
  
  														def __iter__(		self  :				List[Any]		):
  																				return self
  
  
  
  
  
  
  
  														def 		_UpperCAmelCase	(		self  :				Any		):
  																				if self._cur is None:
  																										# finished iterating
  																										raise StopIteration
  																				_a     =			self._cur.val
  																				_a     =			self._cur.next_node
  
  																				return val
  
  
  
  
  
  
  
  							def __init__(		self  :				int		,				SCREAMING_SNAKE_CASE_  :				Iterable[Any] | None = None		):
  													_a     =			None
  													_a     =			None
  													_a     =			0
  
  													if iterable is not None:
  																			# append every value to the deque
  																			for val in iterable:
  																									self.append(SCREAMING_SNAKE_CASE_		)
  
  
  
  
  
  
  
  							def 		_UpperCAmelCase	(		self  :				int		,				SCREAMING_SNAKE_CASE_  :				Any		):
  													_a     =			self._Node(SCREAMING_SNAKE_CASE_		,				SCREAMING_SNAKE_CASE_		,				SCREAMING_SNAKE_CASE_		)
  													if self.is_empty():
  																			# front = back
  																			_a     =			_a     =			node
  																			_a     =			1
  													else:
  																			# connect nodes
  																			_a     =			node
  																			_a     =			self._back
  																			_a     =			node  # assign new back to the new node
  
  																			self._len += 1
  
  																			# make sure there were no errors
  																			assert not self.is_empty(), "Error on appending value."
  
  
  
  
  
  
  
  							def 		_UpperCAmelCase	(		self  :				Tuple		,				SCREAMING_SNAKE_CASE_  :				Any		):
  													_a     =			self._Node(SCREAMING_SNAKE_CASE_		,				SCREAMING_SNAKE_CASE_		,				SCREAMING_SNAKE_CASE_		)
  													if self.is_empty():
  																			# front = back
  																			_a     =			_a     =			node
  																			_a     =			1
  													else:
  																			# connect nodes
  																			_a     =			self._front
  																			_a     =			node
  																			_a     =			node  # assign new front to the new node
  
  																			self._len += 1
  
  																			# make sure there were no errors
  																			assert not self.is_empty(), "Error on appending value."
  
  
  
  
  
  
  
  							def 		_UpperCAmelCase	(		self  :				int		,				SCREAMING_SNAKE_CASE_  :				Iterable[Any]		):
  													for val in iterable:
  																			self.append(SCREAMING_SNAKE_CASE_		)
  
  
  
  
  
  
  
  							def 		_UpperCAmelCase	(		self  :				Optional[Any]		,				SCREAMING_SNAKE_CASE_  :				Iterable[Any]		):
  													for val in iterable:
  																			self.appendleft(SCREAMING_SNAKE_CASE_		)
  
  
  
  
  
  
  
  							def 		_UpperCAmelCase	(		self  :				Tuple		):
  													assert not self.is_empty(), "Deque is empty."
  
  													_a     =			self._back
  													_a     =			self._back.prev_node  # set new back
  													# drop the last node - python will deallocate memory automatically
  													_a     =			None
  
  													self._len -= 1
  
  													return topop.val
  
  
  
  
  
  
  
  							def 		_UpperCAmelCase	(		self  :				Union[str, Any]		):
  													assert not self.is_empty(), "Deque is empty."
  
  													_a     =			self._front
  													_a     =			self._front.next_node  # set new front and drop the first node
  													_a     =			None
  
  													self._len -= 1
  
  													return topop.val
  
  
  
  
  
  
  
  							def 		_UpperCAmelCase	(		self  :				Optional[int]		):
  													return self._front is None
  
  
  
  
  
  
  
  							def __len__(		self  :				Tuple		):
  													return self._len
  
  
  
  
  
  
  
  							def __eq__(		self  :				Union[str, Any]		,				SCREAMING_SNAKE_CASE_  :				object		):
  
  													if not isinstance(SCREAMING_SNAKE_CASE_		,				SCREAMING_SNAKE_CASE_		):
  																			return NotImplemented
  
  													_a     =			self._front
  													_a     =			other._front
  
  													# if the length of the dequeues are not the same, they are not equal
  													if len(self		) != len(SCREAMING_SNAKE_CASE_		):
  																			return False
  
  													while me is not None and oth is not None:
  																			# compare every value
  																			if me.val != oth.val:
  																									return False
  																			_a     =			me.next_node
  																			_a     =			oth.next_node
  
  													return True
  
  
  
  
  
  
  
  							def __iter__(		self  :				Optional[int]		):
  													return Deque._Iterator(self._front		)
  
  
  
  
  
  
  
  							def __repr__(		self  :				int		):
  													_a     =			[]
  													_a     =			self._front
  													while aux is not None:
  																			# append the values in a list to display
  																			values_list.append(aux.val		)
  																			_a     =			aux.next_node
  
  													return f"""[{', '.join(repr(SCREAMING_SNAKE_CASE_		) for val in values_list		)}]"""
  
  
  if __name__ == "__main__":
  		import doctest
  
  		doctest.testmod()
  
  
  
style_context: 
  
  
  import math
  
  
  def 							SCREAMING_SNAKE_CASE					(  _UpperCAmelCase				)    ->  float:
  						_a     =			math.log(2							,     10				) * number
  						_a     =			round((log_number - int(_UpperCAmelCase				))							,     15				)
  
  						return difference
  
  
  def 							SCREAMING_SNAKE_CASE					(  _UpperCAmelCase = 678910				)    ->  int:
  						_a     =			90
  						_a     =			0
  
  						_a     =			math.log(1.23							,     10				)
  						_a     =			math.log(1.24							,     10				)
  						_a     =			0
  
  						while position < number:
  												_a     =			log_difference(_UpperCAmelCase				)
  
  												if difference >= upper_limit:
  																		power_iterator += 93
  
  												elif difference < lower_limit:
  																		power_iterator += 196
  
  												else:
  																		_a     =			power_iterator
  																		power_iterator += 196
  																		position += 1
  
  						return previous_power
  
  
  if __name__ == "__main__":
  		import doctest
  
  		doctest.testmod()
  
  		print(f"""{solution() = }""")
  
  
  