#include <bits/stdc++.h>
#define fastIO (cin.tie(0), cout.tie(0), ios::sync_with_stdio(false))
#define precise(i) fixed << setprecision(i)
#define rep(i, n) for (int i = 0; i < (int)(n); i++)
using namespace std;

int main() {
  fastIO;
  int x, y;
  cin >> x >> y;

  int diameter = sqrt(x * x + y * y) * 2;
  cout << diameter + 1 << endl;
  return 0;
}