Valideringskod
*     *   *****    *****   ******      *     
*   **   *     *  *     *  *     *    **     
* **           *        *  *     *   * *     
**            *       **   *     *     *     
* **        **          *  *     *     *     
*   **    **      *     *  *     *     *     
*     *  *******   *****   ******   *******