#define _D321EBUG
#include <bits/stdc++.h>
using namespace std;
#define endl "\n"
typedef long long ll;
typedef long double ld;
typedef pair<int, int> pii;
typedef pair<ll, ll> pll;
const long double pi = acos(-1.0);
const int INF = 1987654321;
// 


int main(){
#ifdef _DEBUG
    freopen ("input.txt", "r", stdin);
    freopen("output.txt", "w", stdout);
#endif  
    ios::sync_with_stdio(false);
    cin.tie(NULL);
    
        
    int T; cin >> T;
    while(T--){
        unsigned long long a, b, c; cin >> a >> b >> c;
        // cout << a << " " << b<<  " " << c << endl;
        unsigned long long ans = 0;
        ans += 2*(b/2);
        ans += 2 * min(a, c);
        cout << ans << endl;
    }
    
    return 0;
}