-er a-a a-b a-i a-t aaa aab aae aaf aag aai aan aao aar aat aau ab- aba abb abe abf abg abi abn abo abr abt abu aea aeb aee aef aeg aei aen aeo aer aet aeu af- afa afb afe aff afg afi afn afo afr aft afu ag- aga agb age agf agg agi agn ago agr agt agu ai- aia aib aie aif aig aii ain aio air ait aiu an- ana anb ane anf ang ani ann ano anr ant anu aoa aob aoe aof aog aoi aon aoo aor aot aou ar- ara arb are arf arg ari arn aro arr art aru at- ata atb ate atf atg ati atn ato atr att atu au- aua aub aue auf aug aui aun auo aur aut b-u baa bab bae baf bag bai ban bao bar bat bau bba bbb bbe bbf bbg bbi bbn bbo bbr bbt bbu be- bea beb bee bef beg bei ben beo ber bet beu bfa bfb bfe bff bfg bfi bfn bfo bfr bft bfu bga bgb bge bgf bgg bgi bgn bgo bgr bgt bgu bi- bia bib bie bif big bii bin bio bir bit biu bna bnb bne bnf bng bni bnn bno bnr bnt bnu boa bob boe bof bog boi bon boo bor bot bou bra brb bre brf brg bri brn bro brr brt bru bta btb bte btf btg bti btn bto btr btt btu bua bub bue buf bug bui bun buo bur but buu eaa eab eae eaf eag eai ean eao ear eat eau eba ebb ebe ebf ebg ebi ebn ebo ebr ebt ebu eea eeb eee eef eeg een eeo eer eet ef- efa efb efe eff efg efi efo efr eft ega egb ege egf egg egi egn ego egr egt egu eia eib eie eif eig eii ein eio eir eit eiu en- ena enb ene enf eng eni enn eno enr ent enu eo- eoa eob eoe eof eog eoi eon eoo eor eot eou era erb ere erf erg eri ern ero err ert eru eta etb ete etf etg eti etn eto etr ett etu eu- eua eub eue euf eug eui eun eur eut faa fab fae faf fag fai fan fao far fat fau fba fbb fbe fbf fbg fbi fbn fbo fbr fbt fbu fea feb fee fef feg fei fen feo fer fet feu ffa ffe fff ffg ffi ffn ffo ffr fft ffu fga fgb fge fgf fgg fgi fgn fgr fgt fia fib fie fif fig fii fin fir fit fiu fna fnb fne fnf fng fni fnn fnr fnt fnu foa fob foe fof fog foi fon foo for fot fou fra frb fre frf frg fri frn fro frr frt fru fta ftb fte ftf ftg fti ftn fto ftr ftt ftu fua fub fue fuf fug fui fun fuo fur fut fuu gaa gab gae gaf gag gai gan gao gar gat gau gba gbe gbf gbg gbi gbn gbo gbr gbt gbu ge- gea geb gee gef geg gei gen geo ger get geu gfa gfb gfe gff gfi gfo gfr gft gga ggb ggg ggi ggn ggo ggr ggt ggu gia gib gie gif gig gii gin gio gir git giu gna gnb gne gnf gni gnn gno gnr gnt gnu goa gob goe gof gog goi gon goo gor got gou gra grb gre grf grg gri grn gro grr grt gru gta gtb gte gtf gtg gti gtn gto gtr gtt gtu gu- gua gub gue guf gug gui gun guo gur gut guu i-f ia- iaa iab iae iaf iag iai ian iao iar iat iau iba ibb ibe ibf ibg ibi ibn ibo ibr ibt ibu ie- iea iee ief ieg iei ien ier iet ifa ifb ife iff ifg ifi ifn ifo ifr ift ifu iga igb ige igf igg igi ign igo igr igt igu iia iib iie iif iii iin iio iir iit iiu in- ina inb ine inf ing ini inn ino inr int inu io- ioa iob ioe iof iog ioi ion ioo ior iot iou ir- ira irb ire irf irg iri irn iro irr irt iru ita itb ite itf itg iti itn ito itt itu iu- iua iub iue iug iui iur iut n-i naa nab nae naf nag nai nan nao nar nat nau nba nbb nbe nbf nbg nbi nbn nbo nbr nbt nbu ne- nea neb nee nef neg nei nen neo ner net neu nfa nfb nfe nff nfi nfn nfo nfr nft nfu nga ngb nge ngf ngg ngi ngn ngo ngt ngu nia nib nie nif nig nii nin nio nir nit niu nna nnb nne nnf nng nni nnn nno nnt nnu no- noa nob noe nof nog noi non noo nor not nou nra nrb nre nrf nrg nri nrn nro nrr nrt nru nta ntb nte ntf ntg nti ntn nto ntr ntt ntu nua nub nue nug nui nun nuo nur nut nuu o-i oaa oab oae oaf oag oai oan oao oar oat oau ob- oba obb obe obf obg obi obn obo obr obt obu oea oeb oee oef oeg oei oen oeo oer oet of- ofa ofb ofe off ofg ofi ofn ofo ofr oft ofu oga oge ogf ogg ogi ogn ogo ogt oia oib oie oif oii oin oio oir oit oiu on- ona onb one onf ong oni onn ono onr ont onu oo- ooa oob oof oog ooi oon ooo oor oot or- ora orb ore orf org ori orn oro orr ort oru ot- ota otb ote otf otg oti otn oto otr ott otu ou- oua oue ouf oui oun ouo our out ra- raa rab rae raf rag rai ran rao rar rat rau rba rbb rbe rbf rbg rbi rbn rbo rbr rbt rbu re- rea reb ree ref reg rei ren reo rer ret