utovsm vtov wtovs xtovsm ytov

jkpv kkpvs lkpvsm mkpv nkpvs

8aqvs 9aqvsm abqv bbqvs cbqvsm

x1qvsm y1qv z1qvs 01qvsm 11qv

msrv nsrvs osrvsm psrv qsrvs