int SelfPowers()
{
    __int64 currentSum = 0;
    for (int i = 1; i <= 1000; i++)
    {
        currentSum += (i * i);
    }
    std::string str = std::to_string(currentSum);
    std::string output = str.substr(str.size() - 9, str.size());
    return std::stoi(output);
}