bxdeb
cxdebu
dxde
exdeb
fxdebu
0neebu
1nee
2neeb
3neebu
4nee
pefe
qefeb
refebu
sefe
tefeb
e5feb
f5febu
g5fe
h5feb
i5febu
3vgebu
4vge
5vgeb
6vgebu
7vge