7tqn 8tqn2 9tqn22 auqn buqn2
wkrn2 xkrn22 ykrn zkrn2 0krn22
lbsn22 mbsn nbsn2 obsn22 pbsn
a2sn b2sn2 c2sn22 d2sn e2sn2
zstn2 0stn22 1stn 2stn2 3stn22