def _get_game_number(cls, gid_path):
        """
        Game Number
        :param gid_path: game logs directory path
        :return: game number(int)
        """
        game_number = str(gid_path[len(gid_path)-2:len(gid_path)-1])
        if game_number.isdigit():
            return int(game_number)
        else:
            for char in reversed(gid_path):
                if char.isdigit():
                    return int(char)
        raise MlbAmException('Illegal Game Number:(gid:{gid_path})'.format(gid_path))