#include <iostream>
#include <sstream>
#include <string>
#include <vector>
#include <list>
#include <stack>
#include <queue>
#include <deque>
#include <set>
#include <map>
#include <algorithm>
#include <functional>
#include <limits>
#include <cstdio>
#include <cstdlib>
#include <cmath>
#include <climits>
#include <complex>

using namespace std;

#define INF (INT_MAX/3)
#define PI (2*acos(0.0))
#define EPS (1e-8)

typedef long long ll;
typedef unsigned long long ull;

bool inThisCircle(int r, int x, int y){
    return sqrt(x * x + y * y) < 1.0 * r / 2;
}

int main(){
    ios_base::sync_with_stdio(0);
    int xp, yp;
    cin >> xp >> yp;
    for(int i = 1; ; i++){
        if(inThisCircle(i, xp, yp)) { cout << i << endl; break; }
    }
    return 0;
}