16 solutions found:

aaaaa
bbccc
bbccc
bbdde

aaaaa
bbccc
bbccc
bbedd

aaaaa
bbdde
bbccc
bbccc

aaaaa
bbedd
bbccc
bbccc

aaaaa
cccbb
cccbb
ddebb

aaaaa
cccbb
cccbb
eddbb

aaaaa
ddebb
cccbb
cccbb

aaaaa
eddbb
cccbb
cccbb

bbccc
bbccc
bbdde
aaaaa

bbccc
bbccc
bbedd
aaaaa

bbdde
bbccc
bbccc
aaaaa

bbedd
bbccc
bbccc
aaaaa

cccbb
cccbb
ddebb
aaaaa

cccbb
cccbb
eddbb
aaaaa

ddebb
cccbb
cccbb
aaaaa

eddbb
cccbb
cccbb
aaaaa