50
eaeed
dceaa
bbacc
bbecd
bbdac
bbdec
aedbc
ddebb
ceccc
edbed
acdba
cedba
aabbd
dedee
bbbde
ebdcd
ebdae
deacb
baeca
ecdcc
bbaca
ebcaa
bacbc
cccdd
edbdc
bbadd
caaee
cddab
bbeab
bdede
dedda
dccdd
cbacd
eebab
ebdde
deeec
dddce
ddadd
dbede
cccdc
acdba
dbbce
dbcba
deceb
cbbec
bceac
debdb
eadca
dbccc
ceebe
dcaae
ebcaa
edebc
eecbe
cbbad
caeeb
bddaa
dcdca
bdbcb
ebceb
dbeec
edeea
bdecd
dcadb
ceeee
eceda
dcdad
dcaca
cecad
edcbb
adabc
ccbea
deaaa
dbabc
aeaee
abedc
ddbed
eecac
acaab
cddee
accea
cedda
dbcba
aeacb
bbbcd
aaedd
ceadd
dacca
dacec
ddcba
deaab
eabca
bbbcb
ccbeb
cccba
bdeea
badce
eecce
cdbac
daddc