-er b-u bbb bbc bbe bbg bbh bbn bbr bbu bcb bcc bce bcg bch bcn bcr bcu be- beb bec bee beg beh ben ber beu bgb bgc bge bgg bgh bgn bgr bgu bhb bhc bhe bhg bhh bhr bhu bnb bnc bne bng bnn bnr bnu brb bre brg brh brn brr bru bub buc bue bug buh bun bur buu c-- cbb cbc cbe cbg cbh cbn cbr cbu ccb ccc cce ccg cch ccn ccr ccu ce- ceb cec cee ceg ceh cen cer ceu cgb cgc cge cgg cgh cgn cgr cgu ch- chb chc che chg chh chn chr chu cn- cnb cnc cne cng cnh cnn cnr cnu crb crc cre crg crh crn crr cru cub cuc cue cug cuh cun cur cuu ebb ebc ebe ebg ebh ebn ebr ebu ec- ecb ecc ece ecg ech ecn ecr ecu eeb eec eee eeg een eer egb egc ege egg egh egn egr egu ehb ehc ehe ehg ehh ehn ehr ehu en- enb enc ene eng enh enn enr enu erb erc ere erg erh ern err eru eu- eub euc eue eug eun eur gbc gbe gbg gbh gbn gbr gbu gcb gcc gce gcg gch gcn gcr gcu ge- geb gec gee geg geh gen ger geu ggb ggc ggg ggh ggn ggr ggu ghb ghc ghe ghg ghh ghn ghr gnb gnc gne gnn gnr gnu grb grc gre grg grh grn grr gru gu- gub guc gue gug gun gur guu hbb hbc hbe hbg hbh hbn hbr hbu hcb hcc hce hcg hch hcn hcr he- heb hec hee heg heh hen her heu hgb hgc hge hgg hgh hgn hgr hgu hhb hhc hhe hhg hhh hhn hhr hhu hnb hnc hne hng hnh hnn hnu hr- hrb hrc hre hrg hrh hrn hrr hru hub huc hue hug huh hun hur huu nbb nbc nbe nbg nbn nbr nbu ncb ncc nce ncg nch ncn ncr ncu ne- neb nec nee neg neh nen ner neu ngb ngc nge ngg ngh ngn ngu nhb nhc nhe nhg nhh nhn nhr nhu nnb nnc nne nng nnh nnn nnu nrb nrc nre nrg nrn nrr nru nub nuc nue nug nuh nun nur nuu rbb rbc rbe rbg rbh rbn rbr rbu rcb rcc rce rcg rch rcn rcr rcu re- reb rec ree reg reh ren rer reu rgb rgc rge rgg rgh rgn rgr rh- rhb rhc rhe rhg rhh rhn rhr rhu rnb rnc rng rnh rnn rnr rnu rrb rrc rrg rrh rrn rrr rru rub ruc rue rug ruh run rur ruu ubb ubc ube ubg ubh ubn ubr ubu ucb ucc uce ucg uch ucn ucr ucu ueb uec uee ueg ueh uen uer ugb ugc uge ugg ugh ugn ugr ugu uhb uhc uhe uhh uhr uhu un- unb unc une ung unh unn unr unu ur- urb urc ure urg urn urr uru uuc uue uug uun uur uuu

-ene bbbb bbch bbeb bbng bbrc bbrg bcbc bcbg bccc bcec bcer bche bcnu bcru bcuc bebb bebe bech becu beeb beeg been beer begg begu behn behr bene beng benn benu berc bere berg bern berr beru beur bgun bhcc bher bhur bhuu bneg bner bnrr brcb brce breb brec bree breg bren brer brrr bruc brue brug bruh brun bubb bube bubu bucc buce buch bucu buen buer bueu buge bugg bugh buhe buhr bunb bune bung bunn bunu bur- burb bure burg burh burn burr buru cbbc cbcc cbce cbcn cbcr cbcu cbec cbee cber cbgb cbre cbrh cbrn ccbc ccbn cccb cccc cccu ccee ccgc cche cchr ccnb ccnc ccne ccnr ccnu ccrc ccre ccrg ccuc cebu cec- cece ceeb ceec cege cen- cene ceng cer- cerc cere cern cgcc cgcg cger chce chch cheb chec chee cheh chen cher cheu chgb chge chgn chnb chnc chnr chrb chrc chrn chrr chub chug chun chur cnbc cnrc cnrr crbc crbu crcc crce crcr cre- creb crec cree creg creh cren creu crne crub crue crug crun cub- cubb cube cucc cuce cucn cuer cune curb cure curn curr ebbc ebbr ebcc eben eber ebru ebur ecbc ecbe eccb eccc ecce eche ecne ecrc ecrr ecru eeee eeng eerc eerg egbe egbu egcc egcg egcr egec egee eger eggb egge eggh eghe eghh egne egre ehcc eheh ehen eher eheu ehre enb- enbn enbr ence ench enee eneg ener enge engg engr ennc enne ennu enue enur erbb erbe ercc erce erch ereb erec eren erer erg- ergg ergh erhc erhu erne errc erre erub eruc eruh erur eubc euch euer euge eugh eur- eurc eure gc-c gcbc gccc gcrg gebe gece geen geer gege gegg gehn gehu gen- genc gene geng genn genu gerb gere gern geru geue geun gggg gghg ggrn ghee gheg ghug gncc gneu gngc gnrc gnrr grbr grcc grce greb grec gree greg gren greu grrr grub grue grug grun grur gubb gubu guch guen guer gugb guge gugg gugh gugu guhe guhr gung gunn gurb gure gurg gurh gurn gurr guru hcbc hccb hccc hcch hcgh hcng hebb hebe hebr hech heeb heeg heer hege hegg hegh hehe hehn hene heng henh henn henu herb herc here herg hern herr heru heue heug heun heur hggc hhgg hhhh hnce hree hrng hrrc hrun hubb hube huch hucu huer huge hugg hugh huhn huhu hunc hune hung hunh hure hurn hurr huru huub nbbc nbcc nber ncbc nccc nccn nccr nccu ncec ncee ncen ncer ncgr nchc ncnc ncrc ncre ncue nebb nebe nebn nebr nebu necc nece nech necr neeb neen neer nege negh nehe nehu nene neng nenh nenu nerc nere nerr neru neuc neue neun neur neuu ngen nger ngur nguu nhcc nheb nhnn nhrc nngn nnnn nren nrrc nubc nube nuce nuch nucu nuee nuer nunc nune nung nunn nurc nure nurn nurr nuru rbbb rbbr rbgh rcbc rccb rccc rcgc rchb rcnr rcrg rebb