// コピーして使う！
#include <bits/stdc++.h>
using namespace std;
using ll = long long;
using vll = vector<long long>;

int main() {
    ll xp, yp;
    cin >> xp >> yp;
    ll r = pow(xp * xp + yp * yp, 0.5)*2+1;
    cout << r << endl;

    system("pause");
}