y2dr
z2drr
02drrh
12dr
22drr
nterr
oterrh
pter
qterr
rterrh
ckfrrh
dkfr
ekfrr
fkfrrh
gkfr
1agr
2agrr
3agrrh
4agr
5agrr
q1grr
r1grrh
s1gr
t1grr
u1grrh