#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) {
	double x,y;
	cin >> x >> y;

	int r = ceil(sqrt(x*x+y*y));

	if((double)r == sqrt(x*x+y*y))cout << r*2+1 << endl;
	else cout << r*2 << endl;


	return 0;
}