Function main

Codeforces_problems/Ternary Sequence1401B/solution.cpp:15–46

using namespace std;

int main()
{
    ios_base::sync_with_stdio(false);
    cin.tie(NULL);
    cout.tie(NULL);

    int test_case=1;
    cin >> test_case;
    while(test_case--) {
        long long x1,x2,y1,y2,z1,z2;
        cin >> x1 >> y1 >> z1;
        cin >> x2 >> y2 >> z2;

        long long  ans=0;
        long long  m = min(z1,y2);
        ans+=m*2;
        z1 -= m;
        y2 -= m;

        m = min(z2,x1);
        x1 -= m;
        z2 -= m;

        m = min(z1,z2);
        z1 -= m;
        z2 -= m;

        if(z2 > 0)
            ans -= z2*2;
        cout << ans << endl;
    }
}