code: private static function getMinForlength($outputFormat, $minLength)
      {
          $offset         = str_pad($outputFormat[1], $minLength, $outputFormat[0]);
          $offsetAsNumber = \ShortCode\Code::convertBase($offset, $outputFormat, \ShortCode\Code::FORMAT_NUMBER);
          return $offsetAsNumber;
      }
docs: @param $outputFormat
  @param $minLength
  
  @return int|string