#include<bits/stdc++.h>
using namespace std;
void solve()
{
    int A, B, C, D;
    cin >> A >> B >> C >> D;
    int ans = 0;
    if(A >= 4)
    {
        B = min(B, C);
        ans = 4 + B * 2;
        for(int i = 1; i < B; i++)
        {
            int j = min(B - i, D / i);
            ans = max(ans, 4 + i * 2 + j * 2 + i * j);
        }
    }
    cout << ans << "\n";
}
int main()
{
    cin.tie(0)->sync_with_stdio(false);
    int T;
    cin >> T;
    while(T--) solve();
    return 0;
}