#include <bits/stdc++.h>
using namespace std;
#define rep(i, n) for (int i = 0; i < (int)(n); ++i)
int main() {
    // Input
    int Xp, Yp;
    cin >> Xp >> Yp;

    // All Search
    int dist = Xp * Xp + Yp * Yp;
    for (int r = 1; ; ++r) {
        if (4 * dist < r * r) {
            cout << r << endl;
            return 0;
        }
    }
}