#include <bits/stdc++.h>
#include<iostream>
#include<map>
#include<vector>
#include <algorithm>
#include<math.h>
#include <iomanip>
#include<set>
#include <numeric>
#include<string>
using ll = long long;
using namespace std;

int main()
{
    ll t, a, b, c;
    cin >> t;
    for (int i = 0; i < t; i++){
        ll max1 = 0;
        cin >> a >> b >> c;
        if (a && c){
            ll tmp = min(a, c);
            max1 += tmp*2;
            if (a >= c){
                a -= c;
                c = 0;
            } else {
                c -= a;
                a = 0;
            }
        }
        if (b%2) max1 += (b-1);
        else max1 += b;
        if (c && c%2) max1 += (c - 1);
        else if (c) max1 += c;
        cout << max1 << "\n";
    }
}