per2
qer2d
rer2du
ser2
ter2d
e5r2d
f5r2du
g5r2
h5r2d
i5r2du
3vs2du
4vs2
5vs2d
6vs2du
7vs2
smt2
tmt2d
umt2du
vmt2
wmt2d
hdu2d
idu2du
jdu2
kdu2d
ldu2du