#include <bits/stdc++.h>
using namespace std;
#ifdef LOCAL
  #include "settings/debug.cpp"
  #define _GLIBCXX_DEBUG
#else
  #define Debug(...) void(0)
#endif
#define rep(i, n) for (int i = 0; i < (n); ++i)
using ll = long long;
using ull = unsigned long long;

inline ll floorsqrt(ll x) {
  ll ok = 0, ng = 1e9 + 1;
  while (abs(ng - ok) > 1) {
    ll mid = (ok + ng) / 2;
    (mid * mid <= x ? ok : ng) = mid;
  }
  return ok;
}

int main() {
  ll x, y;
  cin >> x >> y;
  cout << floorsqrt(4 * (x * x + y * y)) + 1 << endl;
  return 0;
}