#include <bits/stdc++.h>
using namespace std;

int X,Y;
vector<int> arr;

bool is_square(int n) {
  int rt = (int)sqrt(n);
  return rt*rt == n;
}

int calc(int n) {
  int ret = 0;
  for (int i=0; i<arr.size(); i++) {
    if (n-arr[i] <= 0) break;
    if (is_square(n-arr[i])) ret++;
  }
  if (is_square(n)) ret++;
  return ret*4;
}

int main() {
  cin >> X >> Y;
  int a = 1;
  while(a*a <= Y) {
    arr.push_back(a*a);
    a++;
  }
  int ans = 0;
  for (int n=Y; n>=max(X,Y-10000); n--) {
    ans = max(ans, calc(n));
  }
  cout << ans << endl;
}