ddddddddddddddddddddd
lllllllllllllllll
ddddddddddddddddddddddddd
bbbbbbbbbbbbbbbbbb
kkkkkkkkkkkkkkkkkkkkk
dddddddddddddddddddddd
vvvvvvvvvvvvvvvvvv
cccccccccccccccc
vvvvvvvvvvvvvvvvv
vvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvv
vvvvvvvvvvvvvvvvvvvvv
ffffffffffffffff