mymutex

////////////////////////////////////////////////////////////////
#include <iostream>
#include <thread>
#include <mutex>
#include <string>

using namespace std;

std::mutex g_pages_mutex;

FILE *stream;

void MAIN() {
    g_pages_mutex.lock();

    //freopen_s(&stream, "B-large1.in", "r", stdin);
    //freopen_s(&stream, "B-large1.out", "w", stdout);
    int T;
    cin >> T;
    for (int i = 0; i < T; ++i) {
        unsigned long long A, B, K;
        cin >> A >> B >> K;
        unsigned long long  sum = 0;
        for (unsigned long long j = 0; j < A; ++j)
        for (unsigned long long k = 0; k < B; ++k) {
            if ((j & k) < K) { ++sum; }
        }
        cout << "Case #" << i + 1 << ": " << sum << endl;
    }

    g_pages_mutex.unlock();
}

int main() {
    thread t1(MAIN);
    thread t2(MAIN);
    thread t3(MAIN);
    t1.join();
    t2.join();
    t3.join();

    g_pages_mutex.unlock();
}