BBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBB
BBBBBBBB``````````BBBBBBBBB`````````````BBBBBBBBB
BBBBB```````````````BBBBB``````````````````BBBBBB
BBBB````````#`````````BB```````````````````BBBBBB
BBB````````##````````````````````````````````BBBB
BBB```````###````````##````````#####``````BBBB
BB```````####````````##``````##````##``````BBB
BB```#``##`##````````##````##`````###``````BBB
BBB``####``##````````######``````###``````BBB
BBB``###````##```````######``````##```````BBBB
BBBB``````````````````##`````#######``````BBBBB
BBBBBB````````````````##``````####````````BBBBBB
BBBBBBBB``````````````````````````````````BBBBBBBB
BBBBBBBBBBB````````````````````````````BBBBBBBBBBB
BBBBBBBBBBBBBB``````````````````````BBBBBBBBBBBBBB
BBBBBBBBBBBBBBBBB```````````````BBBBBBBBBBBBBBBBBB
BBBBBBBBBBBBBBBBBBB```````````BBBBBBBBBBBBBBBBBBBB
BBBBBBBBBBBBBBBBBBBBB```````BBBBBBBBBBBBBBBBBBBBBB
BBBBBBBBBBBBBBBBBBBBBB`````BBBbBBBBBBBBBBBBBBBBBBB
BBBBBBBBBBBBBBBBBBBBBBB``BBBBbBBBBBBBBBBBBBBBBBBBB
BBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBB
..........................................................................
........@@@@@@@@.................@@@@@@@.........====
.........@@@@@@@................@@@@@@@@.......======
...............@@.....................@@@@......@@........======
...............@@.....................@@@@......@@.........=====
...............@@......................@@@@@@@@..........====
...............@@........................@@@@@@@............===
...............@@..........................@@@@@@..............==
...............@@........................@@@..@@@...............=
...............@@......................@@@@..@@@...............