import std;

void main() {
    long Xp, Yp;
    readf("%d %d\n", Xp, Yp);

    long Rs = Xp * Xp + Yp * Yp;

    long ok = 10 ^^ 6, ng = -1;
    while (ok - ng > 1) {
        long mid = (ok + ng) / 2;

        (mid * mid >= Rs ? ok : ng) = mid;
    }

    long res = ok * 2;
    if (ok * ok == Rs) ++res;

    res.writeln;
}