ggggggggggggggg
aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa
ssssssssssssss
dddddddddddddddddddddddd
ffffffffffffffffffffff
gggggggggggggggggggggggg
gggggggggggggggggggggg
zzzzzzzzzzzzzzzzzz
zzzzzzzzzzzzzzzzzzzzzzzzzz