a-a aaa aad aaf aah aan aao ad- ada add adf adh adn ado af- afa afd aff afh afn afo aha ahd ahf ahh ahn aho an- ana and anf anh ann ano aoa aod aof aoh aon aoo daa dad daf dah dan dao dda ddd ddf ddh ddn ddo dfa dfd dff dfh dfn dfo dh- dha dhd dhf dhh dho dna dnd dnf dnh dnn dno doa dod dof doh don doo faa fad faf fah fan fao fda fdd fdf fdh fdn fdo ffa ffd fff ffh ffn ffo fha fhf fhh fhn fho fna fnd fnf fnh fnn foa fof foh fon foo haa had haf hah han hao hda hdd hdf hdh hdn hdo hfa hfd hff hfh hfn hfo hha hhd hhf hhh hhn hho hna hnd hnf hnh hnn hno hoa hod hof hoh hon hoo naa nad naf nah nan nao nda ndd ndf ndh ndn ndo nfa nfd nff nfn nfo nha nhd nhf nhh nhn nna nnf nnh nnn nno no- noa nod nof noh non noo oaa oad oaf oah oan oao oda odd odf odh odn odo of- ofa ofd off ofn ofo oha ohd ohf ohh ohn oho on- ona ond onf onh onn ono oo- ooa ood oof ooh oon ooo