2
a bb
b aa
b
bbbbbbbb
1
` ab
c
aaaaa
0
ba abb
bca aacd
ad ede
dab
deeeeeeeec
10
b bca
c iac
c acf
d bec
e bhb
g f`g
g bae
h bah
h aaj
j bac
`
cbaaeeaba
-1
