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