-er a-a a-b a-i a-t aaa aab aae aag aai aan aao aar aas aat aau ab- aba abb abe abg abi abn abo abr abs abt abu aea aeb aee aeg aei aen aeo aer aes aet aeu ag- aga agb age agg agi agn ago agr ags agt agu ai- aia aib aie aig aii ain aio air ais ait aiu an- ana anb ane ang ani ann ano anr ans ant anu aoa aob aoe aog aoi aon aoo aor aos aot aou ar- ara arb are arg ari arn aro arr ars art aru as- asa asb ase asg asi asn aso asr ass ast asu at- ata atb ate atg ati atn ato atr ats att atu au- aua aub aue aug aui aun auo aur aus aut b-u baa bab bae bag bai ban bao bar bas bat bau bba bbb bbe bbg bbi bbn bbo bbr bbs bbt bbu be- bea beb bee beg bei ben beo ber bes bet beu bga bgb bge bgg bgi bgn bgo bgr bgs bgt bgu bi- bia bib bie big bii bin bio bir bis bit biu bna bnb bne bng bni bnn bno bnr bns bnt bnu boa bob boe bog boi bon boo bor bos bot bou bra brb bre brg bri brn bro brr brs brt bru bsa bsb bse bsg bsi bsn bso bsr bss bst bsu bta btb bte btg bti btn bto btr bts btt btu bua bub bue bug bui bun buo bur bus but buu eaa eab eae eag eai ean eao ear eas eat eau eba ebb ebe ebg ebi ebn ebo ebr ebs ebt ebu eea eeb eee eeg een eeo eer ees eet ega egb ege egg egi egn ego egr egs egt egu eia eib eie eig eii ein eio eir eis eit eiu en- ena enb ene eng eni enn eno enr ens ent enu eo- eoa eob eoe eog eoi eon eoo eor eos eot eou era erb ere erg eri ern ero err ers ert eru es- esa esb ese esg esi esn eso esr ess est esu eta etb ete etg eti etn eto etr ets ett etu eu- eua eub eue eug eui eun eur eus eut gaa gab gae gag gai gan gao gar gas gat gau gba gbe gbg gbi gbn gbo gbr gbs gbt gbu ge- gea geb gee geg gei gen geo ger ges get geu gga ggb ggg ggi ggn ggo ggr ggs ggt ggu gia gib gie gig gii gin gio gir gis git giu gna gnb gne gni gnn gno gnr gns gnt gnu goa gob goe gog goi gon goo gor gos got gou gra grb gre grg gri grn gro grr grs grt gru gsa gsb gse gsg gsi gsn gso gsr gss gst gsu gta gtb gte gtg gti gtn gto gtr gts gtt gtu gu- gua gub gue gug gui gun guo gur gus gut guu ia- iaa iab iae iag iai ian iao iar ias iat iau iba ibb ibe ibg ibi ibn ibo ibr ibs ibt ibu ie- iea iee ieg iei ien ier ies iet iga igb ige igg igi ign igo igr igs igt igu iia iib iie iii iin iio iir iis iit iiu in- ina inb ine ing ini inn ino inr ins int inu io- ioa iob ioe iog ioi ion ioo ior ios iot iou ir- ira irb ire irg iri irn iro irr irs irt iru is- isa isb ise isg isi isn iso isr iss ist isu ita itb ite itg iti itn ito its itt itu iu- iua iub iue iug iui iur ius iut n-i naa nab nae nag nai nan nao nar nas nat nau nba nbb nbe nbg nbi nbn nbo nbr nbs nbt nbu ne- nea neb nee neg nei nen neo ner nes net neu nga ngb nge ngg ngi ngn ngo ngs ngt ngu nia nib nie nig nii nin nio nir nis nit niu nna nnb nne nng nni nnn nno nns nnt nnu no- noa nob noe nog noi non noo nor nos not nou nra nrb nre nrg nri nrn nro nrr nrs nrt nru nsa nsb nse nsg nsi nsn nso nsr nss nst nsu nta ntb nte ntg nti ntn nto ntr nts ntt ntu nua nub nue nug nui nun nuo nur nus nut nuu o-i oaa oab oae oag oai oan oao oar oas oat oau ob- oba obb obe obg obi obn obo obr obs obt obu oea oeb oee oeg oei oen oeo oer oes oet oga oge ogg ogi ogn ogo ogs ogt oia oib oie oii oin oio oir ois oit oiu on- ona onb one ong oni onn ono onr ons ont onu oo- ooa oob oog ooi oon ooo oor oos oot or- ora orb ore org ori orn oro orr ors ort oru os- osa osb ose osg osi osn oso osr oss ost osu ot- ota otb ote otg oti otn oto otr ots ott otu ou- oua oue oui oun ouo our ous out ra- raa rab rae rag rai ran rao rar ras rat rau rba rbb rbe rbg rbi rbn rbo rbr rbs rbt rbu re- rea reb ree reg rei ren reo rer res ret reu rga rgb rge rgg rgi rgn rgo rgr rgs rgt ria rib rie rig rii rin rio rir ris rit rna rnb rng rni rnn rno rnr rns rnt rnu roa rob roe rog roi ron roo ror ros rot rou rra rrb rrg rri rrn rrr rrs rrt rru rsa rsb rse rsg rsi rsn rso rsr rss rst rsu rta rtb rte rtg rti rtn rto rtr rts rtt rtu rua rub rue rug rui run ruo rur rus rut ruu saa sab sae sag sai san sao sar sas sat sau sba sbb sbe sbg sbi sbn sbo sbr sbs sbt sbu se-