#include<iostream>
using namespace std;


int main()
{
	int x, y;
	cin >> x >> y;
	double r_2 = x*x + y*y;
	double ans = 1;
	while (true){
		if (ans*ans / 4 <= r_2)ans++;
		else {
			cout << ans  << endl;
			break;
		}
	}
	return 0;
}