vvvvvvvvvvvvvvv
<<<<<<<<<<<<<<<<<<<<<<<<<
aaaaaaaaaaaaa
eeeeeeeeeeeeee
vvvvvvvvvvvvv
ffffffffffffffffffffffff
bbbbbbbbbbbbbbbbbb
ssssssssssssssssssssssss
jjjjjjjjjjjjjjjjjjjjjjjjjjjj
vvvvvvvvvvvvvvvvvvv
fffffffffffffffffffffffffffffffff
ssssssssssssss
