yfce
zfceh
0fcehx
1fce
2fceh
n6ceh
o6cehx
p6ce
q6ceh
r6cehx
cxdehx
dxde
exdeh
fxdehx
gxde
1nee
2neeh
3neehx
4nee
5neeh
qefeh
refehx
sefe
tefeh
uefehx