# -*- coding:utf-8 -*-
import math

if __name__ == "__main__":
	x,y = map(int,raw_input().split())
	dist = math.sqrt(x ** 2 + y ** 2)
	dist2 = round(dist,0)
	if dist2 <= dist:
		print int(dist2 * 2 +1)
	else:
		print int(dist2 * 2)