#include <iostream>
#include <string>
#include <algorithm>
#include <vector>
#include <iomanip>
#include <cmath>
#include <stdio.h>
#include <queue>
#include <deque>
#include <cstdio>
#include <set>
#include <map>
#include <bitset>
#include <stack>
#include <cctype>
using namespace std;
int co[10000010] = {};
bool bo[10000010] = { false };
int main() {
	int x, y;
	cin >> x >> y;
	for (int i = 1; i * i <= y; i++) {
		co[i * i]++;
		for (int j = 1; j * j <= y; j++) {
			if (i * i + j * j <= y) {
				co[i * i + j * j]++;
			}
		}
	}
	int ans = 0;
	for (int i = x; i <= y; i++) {
		if (ans < co[i]) {
			ans = co[i];
		}
	}
	cout << ans * 4 << endl;
}