.............................. .............................. ..............O............... ..............OO.............. ...............OO..O.......... .....O..........OO.OO......... ....O..O.O.....OOO..OO........ ....OO........OO....OO........ .....OOOOOOOOO.....OO......... ......OOOOOOOO.....O.......... ...........O.................. .............................. .............................. ..............................