usenr7
tsenr
ssen
rsenr7
qsenr
51dnr
41dn
31dnr7
21dnr
11dn
gbdn
fbdnr7
ebdnr
dbdn
cbdnr7
rkcnr7
qkcnr
pkcn
okcnr7
nkcnr
2tbnr
1tbn
0tbnr7
ztbnr
ytbn