Chain

*        *     *  *     *  *     *  *******  *     *  *     *  
*         *   *    *   *   **   **     *     *     *   *   *   
*          * *      * *    * * * *     *     *     *    * *    
*           *        *     *  *  *     *     *  *  *     *     
*          * *       *     *     *     *     * * * *    * *    
*         *   *      *     *     *     *     **   **   *   *   
*******  *     *     *     *     *     *     *     *  *     *