__uint64_t i = glassesCount;
        while (i == glassesCount)
        {
            pthread_mutex_lock(&glass);
            for (__uint64_t ite = 0; ite < glassesCount; ite++)
            {
                if(glasses[ite] == 1)
                {
                    i = ite;
                    glasses[i] = 0;
                    break;
                }
            }
            pthread_mutex_unlock(&glass);
        }

        printf("Klient nr %d, zamawia %d piwo w kuflu %d\n", currentTh, it, i);
        int sleepTime = (rand() % maxSleep - 1) + 1;
        sleep(sleepTime);
        printf("Klient nr %d, wypil %d piwo w %ds\n", currentTh, it, sleepTime);

        pthread_mutex_lock(&glass);
        glasses[i] = 1;
        pthread_mutex_unlock(&glass);