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