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