2
a bb
b aa
a
bbbbbbbb
1
a aa
d
aaaaa
0
ab abb
bca aadc
da ede
cab
deeeeeeeec
10
b bca
c bai
c acf
d bec
f bbh
g g`f
g aae
h bah
h aaj
j cab
`
abaceaabe
0
