/*
	yukicoder No.98 円を描こう
	解答者：ヒロソフ(HiroakiSoftware)
*/
#include <stdio.h>
#include <math.h>

int main(void) {
	int Px, Py;
	scanf("%d %d", &Px, &Py);
	double r = sqrt((double)(Px * Px + Py * Py));
	printf("%d\n", (int)(2 * r + 1));
	return 0;
}