X...DDDDDDDDDDDDDDDDDDDDDXXXXF       
           X.XXDXXXXXXXXXXXXXXXXXXXDXXXXD       
           X.XXDXXXXXXXXXXXXXXXXX..DXXXXD       
           X.XXDXX..............X.XDXXDDD       
           X.XXDXX.XXX.XXXXXXXX.X.XDXXDX.       
           X.XXDXX.XX.......XXX.X.XDXXDX.       
           X.XXDXX.XX.XXXXX.XXX.XXXDXXDX.       
           X.XXDXX.XX.XDDDX.XXX.X.XDXXDX.       
           X.XXDXX.XX.XDXDX.X.....XDXXDX.       
           X.XXDXX.XX.XIXDX.X.X.XXXDXXDX.       
           X.XXDXX.XX.XXXDX...X.XXXDDDDX.       
           X.XXDXX.XX..X.DDDXXX.XXX.XXXX.       
           X.XXDXX.XXXXXXXXDXXX.XXX.XXXX.       
           X.XXDDDDXXXXXXXXDXXX.XXX.XXXX.       
           X.XXXXXDDDDDDDDDDXXX.XXX.XXXX.       
           X.XXXXXXXXXXXXXXXXXX.XXX.XXXX.       
           X....................XXX.XXXX.       
           XXXXXXXXXXXXXXXXXXXX.XXX......