#include <bits/stdc++.h>

using namespace std;

typedef pair<int,int> P;
typedef pair<int,pair<int,int>> PP;
typedef long long ll;

const double EPS = 1e-8;
const int INF = 1e9;
const int MOD = 1e9+7;

int dy[] = {0,1,0,-1};
int dx[] = {1,0,-1,0};

int main(void) {
	ll i,x,y;
	cin >> x >> y;

	for(i=0;;i++){
		if(i*i/4.0 > x*x+y*y)break;
	}
	cout << i << endl;
	return 0;
}