a-a a-q a-z aaa aad aao aaq aar aaz ad- ada add ado adq adr adz aoa aod aoo aor aqa aqo aqr ar- ara ard aro arq arr arz az- aza azd azo azq azz daa dad dao daq dar daz dda ddd ddo ddq ddr ddz doa dod doo doq dor doz dqa dra drd dro drq drr drz dza dzd dzo dzr oaa oad oao oaq oar oda odd odo odr oo- ooa ood ooo oor oqo or- ora ord oro orr orz oza ozo ozz qaa qad qar qaz qda qdr qoo qor qqq qra ra- raa rad rao raq rar raz rda rdd rdo rdr roa rod roo ror roz rra rrd rrq rrr rza rzo zaa zad zao zaq zar zaz zo- zoa zod zoo zor zro zzr zzz