gggggggggggggggggg
vvvvvvvvvvvvvvvvv
FFFFFFFFFFFFFFFFFFF
hhhhhhhhhhhhhhhhhhhhhhh
fffffffffffffffffffffffffff
fffffffffffffff
vvvvvvvvvvvvvvvv
gggggggggggggggggggggggggggggggggggg
ggggggggggggggggggggg
vvvvvvvvvvvvvvv
ggggggggggggggggggg