
'''simple docstring'''





from .balanced_parentheses import balanced_parentheses
from .stack import Stack

def   A			(							A_				:       str							):
						return {"+": 1, "-": 1, "*": 2, "/": 2, "^": 3}.get(A_     ,				-1							)

def   A			(							A_				:       str							):
						if not balanced_parentheses(A_							):
												raise ValueError('''Mismatched parentheses'''							)
						snake_case							:  Stack[str]			=     Stack()
						snake_case							:  List[str]			=     []
						for char in expression_str:
												if char.isalpha() or char.isdigit():
																		postfix.append(A_							)
												elif char == "(":
																		stack.push(A_							)
												elif char == ")":
																		while not stack.is_empty() and stack.peek() != "(":
																								postfix.append(stack.pop()							)
																		stack.pop()
												else:
																		while not stack.is_empty() and precedence(A_							) <= precedence(stack.peek()							):
																								postfix.append(stack.pop()							)
																		stack.push(A_							)
						while not stack.is_empty():
												postfix.append(stack.pop()							)
						return " ".join(A_							)


if __name__ == "__main__":
						from doctest import testmod

						testmod()
						UpperCAmelCase            = "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))








def  A_(      A = 1000 ):
	UpperCAmelCase_		    =  0
	for i in range(A ):
		if i % 3 == 0 or i % 5 == 0:
			result += i
	return result


if __name__ == "__main__":
				print(f"{solution() = }")


