-er a-a a-b a-i aaa aab aae aaf aag aai aan aao aar aas aau ab- aba abb abe abf abg abi abn abo abr abs abu aea aeb aee aef aeg aei aen aeo aer aes aeu af- afa afb afe aff afg afi afn afo afr afs afu ag- aga agb age agf agg agi agn ago agr ags agu ai- aia aib aie aif aig aii ain aio air ais aiu an- ana anb ane anf ang ani ann ano anr ans anu aoa aob aoe aof aog aoi aon aoo aor aos aou ar- ara arb are arf arg ari arn aro arr ars aru as- asa asb ase asf asg asi asn aso asr ass asu au- aua aub aue auf aug aui aun auo aur aus b-u baa bab bae baf bag bai ban bao bar bas bau bba bbb bbe bbf bbg bbi bbn bbo bbr bbs bbu be- bea beb bee bef beg bei ben beo ber bes beu bfa bfb bfe bff bfg bfi bfn bfo bfr bfs bfu bga bgb bge bgf bgg bgi bgn bgo bgr bgs bgu bi- bia bib bie bif big bii bin bio bir bis biu bna bnb bne bnf bng bni bnn bno bnr bns bnu boa bob boe bof bog boi bon boo bor bos bou bra brb bre brf brg bri brn bro brr brs bru bsa bsb bse bsf bsg bsi bsn bso bsr bss bsu bua bub bue buf bug bui bun buo bur bus buu eaa eab eae eaf eag eai ean eao ear eas eau eba ebb ebe ebf ebg ebi ebn ebo ebr ebs ebu eea eeb eee eef eeg een eeo eer ees ef- efa efb efe eff efg efi efo efr efs ega egb ege egf egg egi egn ego egr egs egu eia eib eie eif eig eii ein eio eir eis eiu en- ena enb ene enf eng eni enn eno enr ens enu eo- eoa eob eoe eof eog eoi eon eoo eor eos eou era erb ere erf erg eri ern ero err ers eru es- esa esb ese esf esg esi esn eso esr ess esu eu- eua eub eue euf eug eui eun eur eus faa fab fae faf fag fai fan fao far fas fau fba fbb fbe fbf fbg fbi fbn fbo fbr fbs fbu fea feb fee fef feg fei fen feo fer fes feu ffa ffe fff ffg ffi ffn ffo ffr ffs ffu fga fgb fge fgf fgg fgi fgn fgr fgs fia fib fie fif fig fii fin fir fis fiu fna fnb fne fnf fng fni fnn fnr fns fnu foa fob foe fof fog foi fon foo for fos fou fra frb fre frf frg fri frn fro frr frs fru fsa fsb fse fsf fsg fsi fsn fso fsr fss fsu fua fub fue fuf fug fui fun fuo fur fus fuu gaa gab gae gaf gag gai gan gao gar gas gau gba gbe gbf gbg gbi gbn gbo gbr gbs gbu ge- gea geb gee gef geg gei gen geo ger ges geu gfa gfb gfe gff gfi gfo gfr gfs gga ggb ggg ggi ggn ggo ggr ggs ggu gia gib gie gif gig gii gin gio gir gis giu gna gnb gne gnf gni gnn gno gnr gns gnu goa gob goe gof gog goi gon goo gor gos gou gra grb gre grf grg gri grn gro grr grs gru gsa gsb gse gsf gsg gsi gsn gso gsr gss gsu gu- gua gub gue guf gug gui gun guo gur gus guu i-f ia- iaa iab iae iaf iag iai ian iao iar ias iau iba ibb ibe ibf ibg ibi ibn ibo ibr ibs ibu ie- iea iee ief ieg iei ien ier ies ifa ifb ife iff ifg ifi ifn ifo ifr ifs ifu iga igb ige igf igg igi ign igo igr igs igu iia iib iie iif iii iin iio iir iis iiu in- ina inb ine inf ing ini inn ino inr ins inu io- ioa iob ioe iof iog ioi ion ioo ior ios iou ir- ira irb ire irf irg iri irn iro irr irs iru is- isa isb ise isf isg isi isn iso isr iss isu iu- iua iub iue iug iui iur ius n-i naa nab nae naf nag nai nan nao nar nas nau nba nbb nbe nbf nbg nbi nbn nbo nbr nbs nbu ne- nea neb nee nef neg nei nen neo ner nes neu nfa nfb nfe nff nfi nfn nfo nfr nfs nfu nga ngb nge ngf ngg ngi ngn ngo ngs ngu nia nib nie nif nig nii nin nio nir nis niu nna nnb nne nnf nng nni nnn nno nns nnu no- noa nob noe nof nog noi non noo nor nos nou nra nrb nre nrf nrg nri nrn nro nrr nrs nru nsa nsb nse nsf nsg nsi nsn nso nsr nss nsu nua nub nue nug nui nun nuo nur nus nuu o-i oaa oab oae oaf oag oai oan oao oar oas oau ob- oba obb obe obf obg obi obn obo obr obs obu oea oeb oee oef oeg oei oen oeo oer oes of- ofa ofb ofe off ofg ofi ofn ofo ofr ofs ofu oga oge ogf ogg ogi ogn ogo ogs oia oib oie oif oii oin oio oir ois oiu on- ona onb one onf ong oni onn ono onr ons onu oo- ooa oob oof oog ooi oon ooo oor oos or- ora orb ore orf org ori orn oro orr ors oru os- osa osb ose osf osg osi osn oso osr oss osu ou- oua oue ouf oui oun ouo our ous ra- raa rab rae raf rag rai ran rao rar ras rau rba rbb rbe rbf rbg rbi rbn rbo rbr rbs rbu re- rea reb ree ref reg rei ren reo