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