std::string removeEmoji(const std::string &orig_remark)
{
    char emoji_id[2] = {(char)-16, (char)-97};
    std::string remark = orig_remark;
    while(true)
    {
        if(remark[0] == emoji_id[0] && remark[1] == emoji_id[1])
            remark.erase(0, 4);
        else
            break;
    }
    if(remark.empty())
        return orig_remark;
    return remark;
}
std::string removeEmoji(const std::string &orig_remark)
{
    char emoji_id[2] = {(char)-16, (char)-97};
    std::string remark = orig_remark;
    while(true)
    {
        if(remark[0] == emoji_id[0] && remark[1] == emoji_id[1])
            remark.erase(0, 4);
        else
            break;
    }
    if(remark.empty())
        return orig_remark;
    return remark;
}