code: from __future__ import annotations
  
  from enum import Enum, unique
  from typing import TypeVar
  
  # Create a generic variable that can be 'Enum', or any subclass.
  a     :			Optional[int]					    =						TypeVar("""T""", bound="""Enum""")
  
  @unique
  class 				_lowercase						(    UpperCAmelCase__ ):
  
  
  
  
  
  
      '''simple docstring'''
      SCREAMING_SNAKE_CASE:							List[str]        =						80
      SCREAMING_SNAKE_CASE:							Dict        =						70
      SCREAMING_SNAKE_CASE:							int        =						60
      SCREAMING_SNAKE_CASE:							Union[str, Any]        =						50
      SCREAMING_SNAKE_CASE:							str        =						40
      SCREAMING_SNAKE_CASE:							Any        =						30
      SCREAMING_SNAKE_CASE:							Tuple        =						20
      SCREAMING_SNAKE_CASE:							int        =						10
  
  
  
  
  
  @unique
  class 				_lowercase						(    UpperCAmelCase__ ):
  
  
  
  
  
  
      '''simple docstring'''
      SCREAMING_SNAKE_CASE:							str        =						24
      SCREAMING_SNAKE_CASE:							str        =						21
      SCREAMING_SNAKE_CASE:							List[str]        =						18
      SCREAMING_SNAKE_CASE:							List[Any]        =						15
      SCREAMING_SNAKE_CASE:							Any        =						12
      SCREAMING_SNAKE_CASE:							Dict        =						9
      SCREAMING_SNAKE_CASE:							Union[str, Any]        =						6
      SCREAMING_SNAKE_CASE:							int        =						3
      SCREAMING_SNAKE_CASE:							Dict        =						2
      SCREAMING_SNAKE_CASE:							Any        =						1
      SCREAMING_SNAKE_CASE:							int        =						-1
      SCREAMING_SNAKE_CASE:							int        =						-2
      SCREAMING_SNAKE_CASE:							List[Any]        =						-3
      SCREAMING_SNAKE_CASE:							Tuple        =						-6
      SCREAMING_SNAKE_CASE:							Any        =						-9
      SCREAMING_SNAKE_CASE:							Optional[int]        =						-12
      SCREAMING_SNAKE_CASE:							Tuple        =						-15
      SCREAMING_SNAKE_CASE:							Any        =						-18
      SCREAMING_SNAKE_CASE:							Dict        =						-21
      SCREAMING_SNAKE_CASE:							Any        =						-24
  
  
  
  
      @classmethod
      def     _a						(						cls   ):
         return {unit.name: unit.value for unit in cls if unit.value > 0}
  
  
  
  
      @classmethod
      def     _a						(						cls   ):
         return {unit.name: unit.value for unit in cls if unit.value < 0}
  
  
  
  
  
  def 		snake_case__  (		lowercase				):
     lowerCAmelCase_:       Tuple         =  SIUnit.get_positive() if value > 0 else SIUnit.get_negative()
     for name_prefix, value_prefix in prefixes.items():
        lowerCAmelCase_:       Dict         =  value / (10**value_prefix)
        if numerical_part > 1:
           return F'''{numerical_part!s} {name_prefix}'''
     return str(lowercase				)
  def 		snake_case__  (		lowercase				):
     for prefix in BinaryUnit:
        lowerCAmelCase_:       Optional[int]         =  value / (2**prefix.value)
        if numerical_part > 1:
           return F'''{numerical_part!s} {prefix.name}'''
     return str(lowercase				)
  
  
  if __name__ == "__main__":
       import doctest
  
       doctest.testmod()
style_context: from .balanced_parentheses import balanced_parentheses
  from .stack import Stack
  def 		snake_case__  (		lowercase				):
     return {"+": 1, "-": 1, "*": 2, "/": 2, "^": 3}.get(lowercase       ,							-1				)
  def 		snake_case__  (		lowercase				):
     if not balanced_parentheses(lowercase				):
        raise ValueError("Mismatched parentheses"				)
     lowerCAmelCase_:       Stack[str]         =  Stack()
     lowerCAmelCase_:       Union[str, Any]         =  []
     for char in expression_str:
        if char.isalpha() or char.isdigit():
           postfix.append(lowercase				)
        elif char == "(":
           stack.push(lowercase				)
        elif char == ")":
           while not stack.is_empty() and stack.peek() != "(":
              postfix.append(stack.pop()				)
           stack.pop()
        else:
           while not stack.is_empty() and precedence(lowercase				) <= precedence(stack.peek()				):
              postfix.append(stack.pop()				)
           stack.push(lowercase				)
     while not stack.is_empty():
        postfix.append(stack.pop()				)
     return " ".join(lowercase				)
  
  
  if __name__ == "__main__":
   from doctest import testmod
  
   testmod()
   a     :			int					    =						"""a+b*(c^d-e)^(f+g*h)-i"""
  
   print("""Infix to Postfix Notation demonstration:\n""")
   print("""Infix notation: """ + expression)
   print("""Postfix notation: """ + infix_to_postfix(expression))