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