#include <iostream>
#include <cstdio>
#include <vector>
#include <algorithm>
#include <utility>
#include <cmath>

using namespace std;

int main() {
	int x, y;

	cin >> x >> y;

	int ans = ceil(1e-9 + sqrt(x * x + y * y) * 2);
	cout << ans << endl;
	return 0;
}