#include<cstdio>
using ll = long long;
int main(){
    int total_testcases;
    scanf("%d", &total_testcases);
    for (int testcase_i = 1; testcase_i <= total_testcases; ++testcase_i){
        ll A, B, C;
        scanf("%lld %lld %lld", &A, &B, &C);
        ll answer = 0;
        printf("%lld\n", A <= C ? (A<<1) + ((C-A)>>1) + ((B>>1)<<1) : (C<<1) + B);
    }
}