#define _GLIBCXX_DEBUG
#define ll long long
#include <bits/stdc++.h>
using namespace std;
using Graph = vector<vector<int>>;

int main(){
  int XP, YP; cin >> XP >> YP;
  double ZP = sqrt(XP*XP + YP*YP);
  for(int i = 0; i <= 1e8; i++){
    if(ZP*2 < i){
      cout << i << endl;
      return 0;
    }
  }
}