#include <stdio.h>
#include <math.h>

int main(void) {
	int x, y, d;
	double r;
	scanf("%d%d", &x, &y);
	r = sqrt(x * x + y * y);
	d = 2 * r + ((r - (int)r >= 0)? 1: 0);
	printf("%d\n", d);

	return 0;
}