protected function generateStrings(int $iterations, int $min, int $max)
    {
        $array = [];

        for ($i = 0; $i < $iterations; ++$i) {
            $rut = rand($min, $max);
            $array[] = number_format($rut, 0, ',', '.') . '-' . RutHelper::getVd($rut);
        }

        return $array;
    }