Chain

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