pqkr
qqkr2
rqkr2t
sqkr
tqkr2
ehlr2
fhlr2t
ghlr
hhlr2
ihlr2t
37lr2t
47lr
57lr2
67lr2t
77lr
symr
tymr2
uymr2t
vymr
wymr2
hpnr2
ipnr2t
jpnr
kpnr2
lpnr2t