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