kom = "SELECT user_id, nickname FROM ch_{}".format(chat_id)
        c.execute(kom)
        max = c.fetchall()
        for human in max:
            bot.get_chat_member(message.chat.id, human[0])
            usern = '{} {}'.format(message.from_user.first_name, message.from_user.last_name)
            if usern[-4:] == 'None':
                usern = usern[:-5]
            if usern == 'None':
                usern = '{}'.format(message.from_user.username)
            req = "UPDATE ch_{} SET nickname = '{}' WHERE user_id = '{}'".format(chat_id, usern, human[0])