2tbcr
3tbcrk
4tbc
5tbcr
6tbcrk
rkccrk
skcc
tkccr
ukccrk
vkcc
gbdc
hbdcr
ibdcrk
jbdc
kbdcr
51dcr
61dcrk
71dc
81dcr
91dcrk
usecrk
vsec
wsecr
xsecrk
ysec