a-a aaa aad aaf aak aan aao aar ad- ada add adf adk adn ado adr af- afa afd aff afk afn afo afr aka akd akk akn ako akr an- ana and anf ank ann ano anr aoa aod aof aok aon aoo aor ar- ara ard arf ark arn aro arr daa dad daf dak dan dao dar dda ddd ddf ddk ddn ddo ddr dfa dfd dff dfk dfn dfo dfr dka dkk dko dkr dna dnd dnf dnk dnn dno dnr doa dod dof dok don doo dor dra drd drk drn dro drr faa fad faf fak fan fao far fda fdd fdf fdk fdn fdo fdr ffa ffd fff ffk ffn ffo ffr fka fkf fkk fna fnd fnf fnk fnn fnr foa fof fok fon foo for fra frd frf frk frn fro frr ka- kaa kad kaf kak kan kao kar kda kdf kdk kdo kdr kfa kfd kff kfo kkk kkn kkr kn- kna knd knf knk knn kno knr koa kod kof kok kon koo kor kra krd krf krk krn kro krr naa nad naf nak nan nao nar nda ndd ndf ndk ndn ndo ndr nfa nfd nff nfk nfn nfo nfr nka nkf nkk nkn nko nkr nna nnf nnk nnn nno no- noa nod nof nok non noo nor nra nrd nrf nrk nrn nro nrr oaa oad oaf oak oan oao oar oda odd odf odn odo odr of- ofa ofd off ofn ofo ofr oka okd okk oko okr on- ona ond onf onk onn ono onr oo- ooa ood oof ook oon ooo oor or- ora ord orf ork orn oro orr ra- raa rad raf rak ran rao rar rda rdd rdf rdn rdo rdr rfa rfd rff rfk rfn rfo rfr rkf rkk rko rna rnd rnn rno rnr roa rod rof rok ron roo ror rra rrd rrf rrk rrn rrr