#include <bits/stdc++.h>
using namespace std;
using ll = long long;
#define rep(i, s, e) for (int i = (int)s; i < (int)e; i++)

int main() {
    cin.tie(nullptr);
    
    int x, y;
    cin >> x >> y;
    
    int d = x*x + y*y;
    
    int R = 1;
    while (true) {
        if (d * 4 < R * R) {
            cout << R << '\n';
            return 0;
        }
        
        R++;
    }
}