-er a-a a-b a-c aaa aab aac aae aag aah aak aan aar aas aau ab- aba abb abc abe abg abh abk abn abr abs abu ac- aca acb acc ace acg ach ack acn acr acs acu aea aeb aec aee aeg aeh aek aen aer aes aeu ag- aga agb agc age agg agh agk agn agr ags agu aha ahb ahc ahe ahg ahh ahk ahn ahr ahs ahu aka akb akc ake akg akh akk akn akr aks aku an- ana anb anc ane ang anh ank ann anr ans anu ar- ara arb arc are arg arh ark arn arr ars aru as- asa asb asc ase asg ash ask asn asr ass asu au- aua aub auc aue aug auh auk aun aur aus b-u baa bab bac bae bag bah bak ban bar bas bau bba bbb bbc bbe bbg bbh bbk bbn bbr bbs bbu bca bcb bcc bce bcg bch bck bcn bcr bcs bcu be- bea beb bec bee beg beh bek ben ber bes beu bga bgb bgc bge bgg bgh bgk bgn bgr bgs bgu bha bhb bhc bhe bhg bhh bhk bhr bhs bhu bka bkb bkc bke bkg bkk bkn bkr bks bna bnb bnc bne bng bnk bnn bnr bns bnu bra brb bre brg brh brk brn brr brs bru bsa bsb bsc bse bsg bsh bsk bsn bsr bss bsu bua bub buc bue bug buh buk bun bur bus buu c-- caa cab cac cae cag cah cak can car cas cau cba cbb cbc cbe cbg cbh cbk cbn cbr cbs cbu cca ccb ccc cce ccg cch cck ccn ccr ccs ccu ce- cea ceb cec cee ceg ceh cek cen cer ces ceu cga cgb cgc cge cgg cgh cgn cgr cgs cgu ch- cha chb chc che chg chh chk chn chr chs chu cka ckb ckc ckh cks cn- cna cnb cnc cne cng cnh cnn cnr cns cnu cra crb crc cre crg crh crk crn crr crs cru csa csb csc cse csg csh csk csn csr css csu cua cub cuc cue cug cuh cuk cun cur cus cuu eaa eab eac eae eag eah eak ean ear eas eau eba ebb ebc ebe ebg ebh ebk ebn ebr ebs ebu ec- eca ecb ecc ece ecg ech eck ecn ecr ecs ecu eea eeb eec eee eeg eek een eer ees ega egb egc ege egg egh egn egr egs egu eha ehb ehc ehe ehg ehh ehn ehr ehs ehu eka ekb ekc eke ekg ekh ekr eks eku en- ena enb enc ene eng enh enk enn enr ens enu era erb erc ere erg erh erk ern err ers eru es- esa esb esc ese esg esh esk esn esr ess esu eu- eua eub euc eue eug eun eur eus gaa gab gac gae gag gah gak gan gar gas gau gba gbc gbe gbg gbh gbk gbn gbr gbs gbu gca gcb gcc gce gcg gch gck gcn gcr gcs gcu ge- gea geb gec gee geg geh gek gen ger ges geu gga ggb ggc ggg ggh ggn ggr ggs ggu gha ghb ghc ghe ghg ghh ghn ghr ghs gka gkb gkh gkn gks gna gnb gnc gne gnn gnr gns gnu gra grb grc gre grg grh grk grn grr grs gru gsa gsb gsc gse gsg gsk gsn gsr gss gsu gu- gua gub guc gue gug guk gun gur gus guu haa hab hac hae hag hah hak han har has hau hba hbb hbc hbe hbg hbh hbk hbn hbr hbs hbu hca hcb hcc hce hcg hch hck hcn hcr hcs he- hea heb hec hee heg heh hek hen her hes heu hga hgb hgc hge hgg hgh hgk hgn hgr hgs hgu hha hhb hhc hhe hhg hhh hhk hhn hhr hhs hhu hka hkb hkg hkh hkk hkn hkr hks hku hna hnb hnc hne hng hnh hnk hnn hns hnu hr- hra hrb hrc hre hrg hrh hrk hrn hrr hrs hru hsa hsb hsc hse hsg hsh hsk hsn hsr hss hsu hua hub huc hue hug huh huk hun hur hus huu ka- kaa kab kac kae kag kah kak kan kar kas kau kba kbb kbc kbe kbh kbk kbn kbr kbs kbu kca kcb kcc kce kcg kch kck kcn kcr kcs kcu ke- kea keb kec kee keg keh kek ken ker kes kga kgb kgc kgh kgs kgu kha khe khh khk khn khr khs khu kkb kkc kke kkh kkk kkn kkr kks kku kn- kna knc kne kng knk knn knr knu kra krc krg krk krn krr krs kru ksa ksb ksc kse ksg ksh ksk ksn ksr kss ksu kub kuc kue kug kuh kuk kun kur kus kuu naa nab nac nae nag nah nak nan nar nas nau nba nbb nbc nbe nbg nbk nbn nbr nbs nbu nca ncb ncc nce ncg nch nck ncn ncr ncs ncu ne- nea neb nec nee neg neh nek nen ner nes neu nga ngb ngc nge ngg ngh ngk ngn ngs ngu nha nhb nhc nhe nhg nhh nhk nhn nhr nhs nhu nka nkc nke nkk nkn nkr nks nku nna nnb nnc nne nng nnh nnk nnn nns nnu nra nrb nrc nre nrg nrk nrn nrr nrs nru nsa nsb nsc nse nsg nsh nsk nsn nsr nss nsu nua nub nuc nue nug nuh nuk nun nur nus nuu ra- raa rab rac rae rag rah rak ran rar ras rau rba rbb rbc rbe rbg rbh rbk rbn rbr rbs rbu rca rcb rcc rce rcg rch rcn rcr rcs rcu re- rea reb rec ree reg reh rek ren rer res reu rga rgb rgc rge rgg rgh rgk rgn rgr rgs rh- rha rhb rhc rhe rhg rhh rhn rhr rhs rhu rkb rkc rke rkg rkk rks