ggggggggggggggggggg
bbbbbbbbbbbbbbbbbbb
gggggggggggggggggggg
vvvvvvvvvvvvvvvvvvvvvv
vvvvvvvvvvvvvvvvvvvvvvvvv
hhhhhhhhhhhhhhhhhhhhhhhhhh
ggggggggggggggggggggg
hhhhhhhhhhhhhhhhhhhh
vvvvvvvvvvvvvvvvvvvvvvvvvv
mbnnnnnnnnnnnnnnnnnnvc
ccccccccccccccccccc