2
a bb
b aa
b
bbbbbbbb
1
` aa
b
aaaaa
0
ca bbb
bca aacd
da ede
cab
deeeeeeeec
10
b bca
c iac
c acf
d bec
e bhb
g g`f
g bae
h bah
h abj
j cab
`
abaeeaabc
-1
