1
eee
2
mmn
mnnn
3
eeee
mmnnmomnnom
mnmn
eeee
n
onmmnnonmn
nonnn
m
nnnn
moo
4
mnnn
mnnmn
n
mnonnon
mnonnmmnn
n
mmnnmn
nnnonnmnonmn
mmmmmnnon
nnmnnn
n