std::string MyConversion(const std::string& sSrc) {
    std::string result;
    size_t nSize = sSrc.size();
    size_t i = 0;
    while (i < nSize) {
        if ('\\' == sSrc[i] && 'u' == sSrc[i + 1]) {
            // This assumes that all hex codes consist of four characters
            char cSave = sSrc[i + 6];
            sSrc[i + 6] = 0;
            result += static_cast<char>(std::strtoul(sSrc.substr(i + 2, 4).c_str(), NULL, 16));
            i += 6;
            sSrc[i] = cSave;
        } else
            result += sSrc[i];
        ++i;
    }
    return result;
}