a-a aaa aad aae aaf aag aan aao ad- ada add ade adf adg adn ado aea aed aee aef aeg aen aeo af- afa afd afe aff afg afn afo ag- aga agd age agf agg agn ago an- ana and ane anf ang ann ano aoa aod aoe aof aog aon aoo daa dad dae daf dag dan dao dda ddd dde ddf ddg ddn ddo de- dea ded dee def deg den deo dfa dfd dfe dff dfg dfn dfo dga dgd dge dgf dgg dgn dna dnd dne dnf dng dnn dno doa dod doe dof dog don doo eaa ead eae eaf eag ean eao ed- eda edd ede edf edg edn edo eea eed eee eef eeg een eeo ef- efa efd efe eff efg efo ega egd ege egf egg egn ego en- ena end ene enf eng enn eno eo- eoa eod eoe eof eog eon eoo faa fad fae faf fag fan fao fda fdd fde fdf fdg fdn fdo fea fed fee fef feg fen feo ffa ffd ffe fff ffg ffn ffo fga fgd fge fgf fgg fgn fna fnd fne fnf fng fnn foa foe fof fog fon foo g-d gaa gad gae gaf gag gan gao gda gdd gde gdf gdn gdo ge- gea ged gee gef geg gen geo gfa gfd gfe gff gfo gga ggd ggg ggn ggo gna gnd gne gnf gnn gno goa god goe gof gog gon goo naa nad nae naf nag nan nao nda ndd nde ndf ndg ndn ndo ne- nea ned nee nef neg nen neo nfa nfd nfe nff nfn nfo nga ngd nge ngf ngg ngn ngo nna nne nnf nng nnn nno no- noa nod noe nof nog non noo oaa oad oae oaf oag oan oao oda odd ode odf odg odn odo oea oed oee oef oeg oen oeo of- ofa ofd ofe off ofg ofn ofo oga ogd oge ogf ogg ogn ogo on- ona ond one onf ong onn ono oo- ooa ood oof oog oon ooo