#include <bits/stdc++.h>
#define rep(i, ss, ee) for (int i = ss; i < ee; ++i)
using namespace std;

void solve() {
  int x, y, d;
  cin >> x >> y;
  d = hypot(x, y) * 2;
  if (floor(d) == d) d++;
  cout << (int)d << endl;
}

int main() {
  ios::sync_with_stdio(false);
  cin.tie(0);
  solve();
  getchar();
}