from collections import deque
from typing import Literal, Self


class Token[T]:
    value: T

    def __init__(self, value: T) -> None:
        self.value = value

class Integer(Token[int]):
    @classmethod
    def create_from_string(cls, string: str) -> Self:
        return cls(int(string))

type _OperatorType = Literal["+", "-", "*", "/"]

class Operator(Token[_OperatorType]):
    def __init__(self, value: Literal["+", "-", "*", "/"], precedence = 0) -> None:
        super().__init__(value)
        self.precedence: int = precedence

type _Parentheses = Literal["(", ")"]

class Parenthesis(Token[_Parentheses]):
    pass

# class Stack(MathObject[deque[MathObject]]):
#     pass