-er b-u bbb bbc bbe bbg bbh bbm bbn bbr bbu bcb bcc bce bcg bch bcm bcn bcr bcu be- beb bec bee beg beh bem ben ber beu bgb bgc bge bgg bgh bgm bgn bgr bgu bhb bhc bhe bhg bhh bhm bhr bhu bmb bmc bme bmg bmh bmm bmn bmr bmu bnb bnc bne bng bnn bnr bnu brb bre brg brh brm brn brr bru bub buc bue bug buh bum bun bur buu c-- cbb cbc cbe cbg cbh cbm cbn cbr cbu ccb ccc cce ccg cch ccm ccn ccr ccu ce- ceb cec cee ceg ceh cem cen cer ceu cgb cgc cge cgg cgh cgm cgn cgr cgu ch- chb chc che chg chh chm chn chr chu cmb cmc cme cmg cmh cmm cmn cmr cmu cn- cnb cnc cne cng cnh cnm cnn cnr cnu crb crc cre crg crh crm crn crr cru cub cuc cue cug cuh cum cun cur cuu ebb ebc ebe ebg ebh ebm ebn ebr ebu ec- ecb ecc ece ecg ech ecm ecn ecr ecu eeb eec eee eeg eem een eer egb egc ege egg egh egm egn egr egu ehb ehc ehe ehg ehh ehm ehn ehr ehu em- emb emc eme emg emh emm emn emr emu en- enb enc ene eng enh enm enn enr enu erb erc ere erg erh erm ern err eru eu- eub euc eue eug eun eur gbc gbe gbg gbh gbm gbn gbr gbu gcb gcc gce gcg gch gcm gcn gcr gcu ge- geb gec gee geg geh gem gen ger geu ggb ggc ggg ggh ggm ggn ggr ggu ghb ghc ghe ghg ghh ghn ghr gmb gmc gme gmg gmh gmm gmn gmr gnb gnc gne gnm gnn gnr gnu grb grc gre grg grh grm grn grr gru gu- gub guc gue gug gum gun gur guu hbb hbc hbe hbg hbh hbm hbn hbr hbu hcb hcc hce hcg hch hcm hcn hcr he- heb hec hee heg heh hem hen her heu hgb hgc hge hgg hgh hgm hgn hgr hgu hhb hhc hhe hhg hhh hhm hhn hhr hhu hmb hmc hme hmg hmh hmm hmr hmu hnb hnc hne hng hnh hnn hnu hr- hrb hrc hre hrg hrh hrm hrn hrr hru hub huc hue hug huh hum hun hur huu m-r mbb mbc mbe mbg mbh mbm mbr mbu mc- mcb mcc mce mcg mch mcm mcn mcr mcu meb mec mee meg meh mem men mer meu mgb mgc mge mgh mgm mgn mgr mgu mhc mhg mhh mhm mhn mhr mhu mmb mmc mme mmg mmh mmm mmn mmr mmu mnb mnc mne mng mnm mnn mnr mnu mrb mrc mre mrg mrh mrm mrn mrr mru mub muc mue mug muh mum mun mur muu nbb nbc nbe nbg nbm nbn nbr nbu ncb ncc nce ncg nch ncm ncn ncr ncu ne- neb nec nee neg neh nem nen ner neu ngb ngc nge ngg ngh ngm ngn ngu nhb nhc nhe nhg nhh nhm nhn nhr nhu nmb nmc nme nmg nmh nmm nmn nmr nmu nnb nnc nne nng nnh nnm nnn nnu nrb nrc nre nrg nrm nrn nrr nru nub nuc nue nug nuh num nun nur nuu rbb rbc rbe rbg rbh rbm rbn rbr rbu rcb rcc rce rcg rch rcm rcn rcr rcu re- reb rec ree reg reh rem ren rer reu rgb rgc rge rgg rgh rgn rgr rh- rhb rhc rhe rhg rhh rhm rhn rhr rhu rmb rmc rme rmg rmh rmm rmn rmr rnb rnc rng rnh rnm rnn rnr rnu rrb rrc rrg rrh rrm rrn rrr rru rub ruc rue rug ruh rum run rur ruu ubb ubc ube ubg ubh ubn ubr ubu ucb ucc uce ucg uch ucm ucn ucr ucu ueb uec uee ueg ueh uem uen uer ugb ugc uge ugg ugh ugm ugn ugr ugu uhb uhc uhe uhh uhm uhr uhu um- umb umc ume umg umh umm umn umr umu un- unb unc une ung unh unm unn unr unu ur- urb urc ure urg urm urn urr uru uuc uue uug uum uun uur uuu

-ene bbbb bbch bbcm bbeb bbgm bbmg bbng bbrc bbrg bcbc bcbg bccc bccm bcec bcer bche bcnu bcru bcuc bebb bebe bech becu beeb beeg beem been beer begg begu behm behn behr beme bemu bene beng benn benu berc bere berg berm bern berr beru beur bgun bhcc bher bhur bhuu bmce bmnh bneg bner bnrr brcb brce breb brec bree breg brem bren brer brmc brrm brrr bruc brue brug bruh brum brun bubb bube bubu bucc buce buch bucu buem buen buer bueu buge bugg bugh buhe buhr bum- bumb bunb bune bung bunn bunu bur- burb bure burg burh burm burn burr buru cbbc cbcc cbce cbcm cbcn cbcr cbcu cbec cbee cber cbgb cbme cbre cbrh cbrm cbrn ccbc ccbn cccb cccc cccm cccu ccee ccgc cche cchr ccmb ccmc ccmm ccnb ccnc ccne ccnm ccnr ccnu ccrc ccre ccrg ccuc cebu cec- cece cecm ceeb ceec ceem cege cemb ceme cemm cemr cemu cen- cene ceng cer- cerc cere cern cgcc cgcg cger cgmc chce chch chcm cheb chec chee cheh chem chen cher cheu chgb chge chgn chmb chmc chmn chnb chnc chnm chnr chrb chrc chrn chrr chub chug chum chun chur cmbc cmcc cmec cmhc cmhg cmmb cmmc cmmn cmnh cmrn cmrr cnbc cnbm cnrc cnrr crbc crbu crcc crce crcr cre- creb crec cree creg creh crem cren creu crmb crmn crne crub crue crug crum crun cub- cubb cube cucc cuce cucm cucn cuer cum- cume cune curb cure curn curr ebbc ebbr ebcc eben eber ebru ebur ecbc ecbe eccb eccc ecce eccm ecem eche ecne ecrc ecrm ecrr ecru eeee eeng eerc eerg egbe egbu egcc egcg egcr egec egee egem eger eggb egge eggh eghe