ffffffffffffffffffffffffff
ffffffffffffffffffff
jjjjjjjjjjjjjjjjjjjjjjjjjjjjj
hfffffffffffffffffffffffffff
bbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbb
hhccccccccccccccccccccccccccccc
hhhhhhhhhhhhhhhhhhhhhhhhhh
vvvvvvvvvvvvv
bbbbbbbbbbbbbbbbbbbbbbbbbbbbbb
bbbbbbbbbbbbbbbbbbbbb
ccccccccccccccccccc