#define _USE_MATH_DEFINES
#include <iostream>
#include <vector>
#include <algorithm>
#include <string>
#include <iomanip>
#include <functional>
#include <cmath>
#include <math.h>
using namespace std;
#define lli long long int
#define us(n) (n) > 0 ? n : (n) * -1

int main() {
	int x, y;
	double kyori;
	cin >> x >> y;
	kyori = sqrt(pow(us(x), 2) + pow(us(y), 2)) - 0.0001;
	cout << fixed << setprecision(0) << kyori * 2 + 1<< endl;
	return 0;
}