db4p cb4pbq bb4pb ab4p 9a4pbq

ok3pbq nk3pb mk3p lk3pbq kk3pb

zt2pb yt2p xt2pbq wt2pb vt2p

a31p 921pbq 821pb 721p 621pbq

lc1pbq kc1pb jc1p ic1pbq hc1pb