#include <bits/stdc++.h>


using namespace std;
typedef long long ll;
#define REP(i,n) for(int i=0; i<int(n); i++)
#define FOR(i,m,n) for(int i=int(m); i<int(n); i++)
#define ALL(obj) (obj).begin(),(obj).end()
#define VI vector<int>
#define VLL vector<long long>
#define VVI vector<vector<int>>
#define VVLL vector<vector<long long>>
#define VC vector<char>
#define VS vector<string>
#define VVC vector<vector<char>>
#define VB vector<bool>
#define VVB vector<vector<bool>>
#define fore(i,a) for(auto &i:a)

typedef pair <int, int> P;
template<class T> bool chmax(T &a, T b) { if (a < b) { a = b; return true; } return false; }
template<class T> bool chmin(T &a, T b) { if (a > b) { a = b; return true; } return false; }
const int  INF = 1 << 29;
const ll INFL = 1LL << 60;
const ll mod = 1000000007;





int ans[10000005];

int main() {

	int x, y;
	cin >> x >> y;

	for (int i = 0; i * i < 10000005; i++) {
		ans[i*i]--;
	}

	for (int i = 0; i*i <= y; i++) {
		for (int j = 0; i*i + j * j <= y; j++) {
			ans[i*i + j * j]++;
		}
	}
	int an = 0;
	FOR(i, x, y + 1) {
		an = max(ans[i], an);
	}
	cout << an * 4 << endl;

}