#include <iostream>
#include <ctime>

void fast_generator(void)
{
    const unsigned int size = 7;
    unsigned char buffer[size + 1] = { 'a' - 1 };
    unsigned int counter = 0;

    const std::clock_t startClocks = std::clock();

    for (unsigned int i = 0; ; )
    {
        if (buffer[i] < 'z')
        {
            buffer[i]++;
            buffer[++i] = 'a' - 1;

            if (i == size)
            {
                counter++; //1
                i--; //2
            }
        }
        else if (i > 0)
        {
            i--;
        }
        else
        {
            break;
        }
    }

    const std::clock_t clocksTaken = std::clock() - startClocks;
    std::cout << "Counter: " << counter << "." << std::endl;
    std::cout << "Clocks taken: " << clocksTaken << "." << std::endl;
}

int main(void)
{
    fast_generator();

    std::cin.sync();
    std::cin.get();
    return 0;
}