a-a aaa aad aae aaf aah aan ad- ada add ade adf adh adn aea aed aee aef aeh aen af- afa afd afe aff afh afn aha ahd ahe ahf ahh ahn an- ana and ane anf anh ann daa dad dae daf dah dan dda ddd dde ddf ddh ddn de- dea ded dee def deh den dfa dfd dfe dff dfh dfn dh- dha dhd dhe dhf dhh dna dnd dne dnf dnh dnn eaa ead eae eaf eah ean ed- eda edd ede edf edh edn eea eed eee eef een ef- efa efd efe eff efh eha ehd ehe ehf ehh ehn en- ena end ene enf enh enn faa fad fae faf fah fan fda fdd fde fdf fdh fdn fea fed fee fef feh fen ffa ffd ffe fff ffh ffn fha fhe fhf fhh fhn fna fnd fne fnf fnh fnn haa had hae haf hah han hda hdd hde hdf hdh hdn he- hea hed hee hef heh hen hfa hfd hfe hff hfh hfn hha hhd hhe hhf hhh hhn hna hnd hne hnf hnh hnn naa nad nae naf nah nan nda ndd nde ndf ndh ndn ne- nea ned nee nef neh nen nfa nfd nfe nff nfn nha nhd nhe nhf nhh nhn nna nne nnf nnh nnn