#include <iostream>
#include <cstdio>
#include <cstring>
#include <vector>
#include <deque>
#include <queue>
#include <array>
#include <set>
#include <map>
#include <cmath>
#include <complex>
#include <algorithm>
#include <numeric>
#include <utility>
#include <tuple>
#include <bitset>
#include <cstdint>
#include <cassert>
#include <random>
#include <iterator>

using namespace std;
using i64 = int64_t;
using i32 = int32_t;

int main() {
    i64 x, y;
    cin >> x >> y;
    map<i64, i64> mp;
    for (i64 i = 0; i * i <= max(x, y); ++i) {
        for (i64 j = 1; j * j <= max(x, y); ++j) {
            mp[i * i + j * j]++;
        }
    }
    i64 ans = 0;
    for (auto p : mp) {
        i64 k, c;
        tie(k, c) = p;
        if (x <= k && k <= y) ans = max(ans, c);
    }
    cout << 4 * ans << endl;
    return 0;
}