#include <bits/stdc++.h>
using namespace std;
#define rep(i, n) for (int i = 0; i < (int)(n); i++)
#define llong long long

int main() {
    int x, y;
    cin >> x >> y;
    vector<int> lens;
    for(int i=0; i<y; i++) {
        if(i*i > y) break;
        lens.push_back(i*i);
    }
    map<int, int> cands;
    for(int i: lens) {
        for(int j: lens) {
            if(j==0) continue;
            int val = i+j;
            if(val < x || y < val) continue;
            if(cands.find(val) == cands.end()) cands[val] = 1;
            else cands[val] += 1;
        }
    }
    
    int result = 0;
    for(pair<int, int> p: cands) {
        result = max(result, p.second);
    }

    cout << 4 * result << "\n";
}