# -*- coding: utf-8 -*-

import math

xp, yp = map(int, input().split())

hypotenuses = pow(pow(xp,2)+pow(yp,2), 0.5)
int_hypo = math.ceil(hypotenuses)

diameter = 0
if pow(int_hypo,2) == (pow(xp,2)+pow(yp,2)):
    diameter = int_hypo*2 + 1
else:
    if int_hypo-0.5 > hypotenuses:
        diameter = int((int_hypo-0.5)*2)
    else:
        diameter = int_hypo*2
print(diameter)