class   lowerCAmelCase    :



     def __init__(       self							):
            _A=						[0, 1]





     def       a__	(       self					,   lowerCAmelCase__							):
            if (difference := index - (len(self.sequence							) - 2)) >= 1:
                   for _ in range(_SCREAMING_SNAKE_CASE							):
                          self.sequence.append(self.sequence[-1] + self.sequence[-2]							)
            return self.sequence[:index]


def 				UpperCamelCase					(     )		->    None:




       '''simple docstring'''






       print(
           'Fibonacci Series Using Dynamic Programming\n'							,       'Enter the index of the Fibonacci number you want to calculate '							,       'in the prompt below. (To exit enter exit or Ctrl-C)\n'							,       sep=''							,       )
       _A=						Fibonacci()

       while True:
              _A=						input('>> ' )
              if prompt in {"exit", "quit"}:
                     break

              try:
                     _A=						int(lowerCAmelCase_ )
              except ValueError:
                     print('Enter a number or \'exit\'' )
                     continue

              print(fibonacci.get(lowerCAmelCase_ ) )


if __name__ == "__main__":
      main()



from .balanced_parentheses import balanced_parentheses
from .stack import Stack

def 			__SCREAMING_SNAKE_CASE		(		UpperCamelCase		:      str	)     ->	int:



	"""simple docstring"""






	return {"+": 1, "-": 1, "*": 2, "/": 2, "^": 3}.get(UpperCamelCase     ,					-1	)

def 			__SCREAMING_SNAKE_CASE		(		UpperCamelCase		:      str	)     ->	str:



	"""simple docstring"""






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


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

			testmod()
			_A							     =       '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))