bbbbbbbbbbbbbbbbbbbbbbbbbb
gggggggggggggggggg
nnnnnnnnnnnnnnnnnnnnnnnnnnnnn
cccccccccccccccccccccccc
fffffffffffffffffffffff
hhhhhhhhhhhhhhhh
kkkkkkkkkkkkkkkkkkkkkkkkk
ggggggggggggggggggggggggggggggggggggg
ggggggggggggggggg
fffffffffffffffffffffffffffff