//yukicoder 98 "円を描こう"
//http://yukicoder.me/problems/224
#include <bits/stdc++.h>
using namespace std;

int main() {
	int x, y;
	cin >> x >> y;
	double ans = 2 * sqrt(x * x + y * y);
	if (ans == 2 * sqrt(x * x + y * y)) {
		cout << (int)++ans << endl;
	} else {
		cout << (int)ceil(ans);
		cout << endl;
	}
	return 0;
}