





'''simple docstring'''






__UpperCamelCase					    =	"Alexander Joslin"

import operator as op

from .stack import Stack







def 					_a						(       _lowerCamelCase ) ->				int:



			"""simple docstring"""


			__snake_case					:      Dict							      =     {"""*""": op.mul, """/""": op.truediv, """+""": op.add, """-""": op.sub}

			__snake_case					:      Stack[int]							      =     Stack()
			__snake_case					:      Stack[str]							      =     Stack()

			for i in equation:
						if i.isdigit():
									# RULE 1
									operand_stack.push(int(_lowerCamelCase ) )
						elif i in operators:
									# RULE 2
									operator_stack.push(_lowerCamelCase )
						elif i == ")":
									# RULE 4
									__snake_case					:      Dict							      =     operator_stack.peek()
									operator_stack.pop()
									__snake_case					:      Dict							      =     operand_stack.peek()
									operand_stack.pop()
									__snake_case					:      Tuple							      =     operand_stack.peek()
									operand_stack.pop()

									__snake_case					:      Optional[Any]							      =     operators[opr](_lowerCamelCase    ,	_lowerCamelCase )
									operand_stack.push(_lowerCamelCase )

    # RULE 5
			return operand_stack.peek()


if __name__ == "__main__":
	__UpperCamelCase					    =	"(5 + ((4 * 2) * (2 + 3)))"
	# answer = 45
	print(f"""{equation} = {dijkstras_two_stack_algorithm(equation)}""")




"""simple docstring"""




from math import ceil



def     __magic_name__		(					UpperCamelCase     :		int = 1001     )     ->						int:
    a__		=			1

    for i in range(1							,		int(ceil(n / 2.0     )     )     ):
        a__		=			2 * i + 1
        a__		=			2 * i
        a__		=			total + 4 * odd**2 - 6 * even

    return total


if __name__ == "__main__":
    import sys

    if len(sys.argv) == 1:
        print(solution())
    else:
        try:
            a		:       Any     						=       int(sys.argv[1])
            print(solution(n))
        except ValueError:
            print('Invalid entry - please enter a number')


