#include <bits/stdc++.h>
//using namespace std;
typedef unsigned long long ul;
typedef signed long long ll;

int main(void)
{
  std::cin.tie(0);
  std::ios::sync_with_stdio(false);
  std::cout << std::fixed;
  ll x, y;
  std::cin >> x >> y;
  ll r2 = x*x + y*y;
  r2 *= 4;
  ll ans = 1;
  while (ans * ans <= r2) ans++;
  std::cout << ans << std::endl;
  return 0;
}