#include <iostream>
using namespace std;

typedef long long ll;

int main()
{
	ll xp, yp;
	cin >> xp >> yp;

	ll rr = xp * xp + yp * yp;

	for (ll i = 1;; i++)
	{
		if (i * i > rr * 4)
		{
			cout << i << endl;
			break;
		}
	}
}