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