-er a-a a-b a-c aaa aab aac aae aaf aag aah aan aar aas aau ab- aba abb abc abe abf abg abh abn abr abs abu ac- aca acb acc ace acf acg ach acn acr acs acu aea aeb aec aee aef aeg aeh aen aer aes aeu af- afa afb afc afe aff afg afh afn afr afs afu ag- aga agb agc age agf agg agh agn agr ags agu aha ahb ahc ahe ahf ahg ahh ahn ahr ahs ahu an- ana anb anc ane anf ang anh ann anr ans anu ar- ara arb arc are arf arg arh arn arr ars aru as- asa asb asc ase asf asg ash asn asr ass asu au- aua aub auc aue auf aug auh aun aur aus b-u baa bab bac bae baf bag bah ban bar bas bau bba bbb bbc bbe bbf bbg bbh bbn bbr bbs bbu bca bcb bcc bce bcf bcg bch bcn bcr bcs bcu be- bea beb bec bee bef beg beh ben ber bes beu bfa bfb bfc bfe bff bfg bfh bfn bfr bfs bfu bga bgb bgc bge bgf bgg bgh bgn bgr bgs bgu bha bhb bhc bhe bhf bhg bhh bhr bhs bhu bna bnb bnc bne bnf bng bnn bnr bns bnu bra brb bre brf brg brh brn brr brs bru bsa bsb bsc bse bsf bsg bsh bsn bsr bss bsu bua bub buc bue buf bug buh bun bur bus buu c-- caa cab cac cae caf cag cah can car cas cau cba cbb cbc cbe cbf cbg cbh cbn cbr cbs cbu cca ccb ccc cce ccf ccg cch ccn ccr ccs ccu ce- cea ceb cec cee cef ceg ceh cen cer ces ceu cfa cfb cfc cfe cff cfg cfh cfn cfr cfs cfu cga cgb cgc cge cgg cgh cgn cgr cgs cgu ch- cha chb chc che chf chg chh chn chr chs chu cn- cna cnb cnc cne cnf cng cnh cnn cnr cns cnu cra crb crc cre crf crg crh crn crr crs cru csa csb csc cse csf csg csh csn csr css csu cua cub cuc cue cuf cug cuh cun cur cus cuu eaa eab eac eae eaf eag eah ean ear eas eau eba ebb ebc ebe ebf ebg ebh ebn ebr ebs ebu ec- eca ecb ecc ece ecf ecg ech ecn ecr ecs ecu eea eeb eec eee eef eeg een eer ees ef- efa efb efc efe eff efg efh efr efs ega egb egc ege egf egg egh egn egr egs egu eha ehb ehc ehe ehf ehg ehh ehn ehr ehs ehu en- ena enb enc ene enf eng enh enn enr ens enu era erb erc ere erf erg erh ern err ers eru es- esa esb esc ese esf esg esh esn esr ess esu eu- eua eub euc eue euf eug eun eur eus faa fab fac fae faf fag fah fan far fas fau fba fbb fbc fbe fbf fbg fbh fbn fbr fbs fbu fca fcb fcc fce fcf fcg fcn fcr fcs fcu fea feb fec fee fef feg feh fen fer fes feu ffa ffc ffe fff ffg ffh ffn ffr ffs ffu fga fgb fgc fge fgf fgg fgh fgn fgr fgs fha fhb fhc fhe fhf fhg fhh fhn fhr fhs fna fnb fnc fne fnf fng fnh fnn fnr fns fnu fra frb frc fre frf frg frh frn frr frs fru fsa fsb fsc fse fsf fsg fsh fsn fsr fss fsu fua fub fue fuf fug fun fur fus fuu gaa gab gac gae gaf gag gah gan gar gas gau gba gbc gbe gbf gbg gbh gbn gbr gbs gbu gca gcb gcc gce gcf gcg gch gcn gcr gcs gcu ge- gea geb gec gee gef geg geh gen ger ges geu gfa gfb gfc gfe gff gfh gfr gfs gga ggb ggc ggg ggh ggn ggr ggs ggu gha ghb ghc ghe ghg ghh ghn ghr ghs gna gnb gnc gne gnf gnn gnr gns gnu gra grb grc gre grf grg grh grn grr grs gru gsa gsb gsc gse gsf gsg gsn gsr gss gsu gu- gua gub guc gue guf gug gun gur gus guu haa hab hac hae haf hag hah han har has hau hba hbb hbc hbe hbf hbg hbh hbn hbr hbs hbu hca hcb hcc hce hcf hcg hch hcn hcr hcs he- hea heb hec hee hef heg heh hen her hes heu hfa hfb hfc hfe hff hfg hfh hfn hfr hfs hfu hga hgb hgc hge hgf hgg hgh hgn hgr hgs hgu hha hhb hhc hhe hhf hhg hhh hhn hhr hhs hhu hna hnb hnc hne hnf hng hnh hnn hns hnu hr- hra hrb hrc hre hrf hrg hrh hrn hrr hrs hru hsa hsb hsc hse hsf hsg hsh hsn hsr hss hsu hua hub huc hue huf hug huh hun hur hus huu naa nab nac nae naf nag nah nan nar nas nau nba nbb nbc nbe nbf nbg nbn nbr nbs nbu nca ncb ncc nce ncf ncg nch ncn ncr ncs ncu ne- nea neb nec nee nef neg neh nen ner nes neu nfa nfb nfc nfe nff nfn nfr nfs nfu nga ngb ngc nge ngf ngg ngh ngn ngs ngu nha nhb nhc nhe nhf nhg nhh nhn nhr nhs nhu nna nnb nnc nne nnf nng nnh nnn nns nnu nra nrb nrc nre nrf nrg nrn nrr nrs nru nsa nsb nsc nse nsf nsg nsh nsn nsr nss nsu nua nub nuc nue nug nuh nun nur nus nuu ra- raa rab rac rae raf rag rah ran rar ras rau rba rbb rbc rbe rbf rbg rbh rbn rbr rbs rbu rca rcb rcc rce rcf rcg rch rcn rcr rcs rcu re- rea reb rec ree ref reg reh