from typing import Self

import math

class Vector:
    x: int
    y: int

    def __init__(self, x: int, y: int):
        self.x = x
        self.y = y

    def __add__(self, other: Self) -> Self:
        return Vector(self.x + other.x, self.y + other.y)

    def __sub__(self, other: Self) -> Self:
        return Vector(self.x - other.x, self.y - other.y)

    def abs(self) -> Self:
        return Vector(abs(self.x), abs(self.y))

    def inverse(self) -> Self:
        return Vector(-self.x, -self.y)

    def __str__(self) -> str:
        return f'{self.x}, {self.y}'

    def __eq__(self, value: Self) -> bool:
        return self.x == value.x and self.y == value.y

    def distance(self, other: Self) -> int:
        return math.sqrt((other.x - self.x)**2 + (other.y - self.y)**2)