2otrs 1otr 0otrsb zotrs yotr

dysr cysrsb bysrs aysr 9xsrsb

o7rrsb n7rrs m7rr l7rrsb k7rrs

zgrrs ygrr xgrrsb wgrrs vgrr

aqqr 9pqrsb 8pqrs 7pqr 6pqrsb