-er bbb bbc bbe bbh bbm bbn bbr bbs bcb bcc bce bch bcm bcn bcr bcs be- beb bec bee beh bem ben ber bes bhb bhc bhe bhh bhm bhr bhs bmb bmc bme bmh bmm bmn bmr bms bnb bnc bne bnn bnr bns brb bre brh brm brn brr brs bsb bsc bse bsh bsm bsn bsr bss c-- cbb cbc cbe cbh cbm cbn cbr cbs ccb ccc cce cch ccm ccn ccr ccs ce- ceb cec cee ceh cem cen cer ces ch- chb chc che chh chm chn chr chs cmb cmc cme cmh cmm cmn cmr cms cn- cnb cnc cne cnh cnm cnn cnr cns crb crc cre crh crm crn crr crs csb csc cse csh csm csn csr css ebb ebc ebe ebh ebm ebn ebr ebs ec- ecb ecc ece ech ecm ecn ecr ecs eeb eec eee eem een eer ees ehb ehc ehe ehh ehm ehn ehr ehs em- emb emc eme emh emm emn emr ems en- enb enc ene enh enm enn enr ens erb erc ere erh erm ern err ers es- esb esc ese esh esm esn esr ess hbb hbc hbe hbh hbm hbn hbr hbs hcb hcc hce hch hcm hcn hcr hcs he- heb hec hee heh hem hen her hes hhb hhc hhe hhh hhm hhn hhr hhs hmb hmc hme hmh hmm hmr hms hnb hnc hne hnh hnn hns hr- hrb hrc hre hrh hrm hrn hrr hrs hsb hsc hse hsh hsm hsn hsr hss m-r mbb mbc mbe mbh mbm mbr mbs mc- mcb mcc mce mch mcm mcn mcr mcs meb mec mee meh mem men mer mes mhc mhh mhm mhn mhr mhs mmb mmc mme mmh mmm mmn mmr mms mnb mnc mne mnm mnn mnr mns mrb mrc mre mrh mrm mrn mrr mrs msb msc mse msh msm msn msr mss nbb nbc nbe nbm nbn nbr nbs ncb ncc nce nch ncm ncn ncr ncs ne- neb nec nee neh nem nen ner nes nhb nhc nhe nhh nhm nhn nhr nhs nmb nmc nme nmh nmm nmn nmr nms nnb nnc nne nnh nnm nnn nns nrb nrc nre nrm nrn nrr nrs nsb nsc nse nsh nsm nsn nsr nss rbb rbc rbe rbh rbm rbn rbr rbs rcb rcc rce rch rcm rcn rcr rcs re- reb rec ree reh rem ren rer res rh- rhb rhc rhe rhh rhm rhn rhr rhs rmb rmc rme rmh rmm rmn rmr rms rnb rnc rnh rnm rnn rnr rns rrb rrc rrh rrm rrn rrr rrs rsb rsc rse rsh rsm rsn rsr rss sbb sbc sbe sbh sbm sbn sbr sbs scb scc sce sch scm scn scr scs se- seb sec see seh sem sen ser ses sh- shb shc she shh shm shn shr shs smb smc sme smh smm smn smr sms snb snc sne snm snn snr sns sr- srb src sre srh srm srn srr srs ss- ssb ssc sse ssh ssm ssn ssr sss

-ene bbbb bbbs bbch bbcm bbeb bbhs bbrc bcbc bcbs bccc bccm bccs bcec bcer bces bche bchs bcms bcrs bcsc bcsm bcsn bcss bebb bebe bech becs beeb beem been beer bees behm behn behr behs beme bene benn bens berc bere berm bern berr bers bes- bese besh besm bess bhcc bher bhhs bhms bmce bmhs bmnh bner bnhs bnrr bnss brcb brce breb brec bree brem bren brer bres brhs brmc brns brrm brrr brrs brsb brsr bscs bseb bsec bsee bser bses bshs bsms bsns bsrm bssc bsse bssm cbbc cbbs cbcc cbce cbcm cbcn cbcr cbcs cbec cbee cber cbhs cbme cbms cbre cbrh cbrm cbrn cbsc cbse cbsm cbsn ccbc ccbn cccb cccc cccm cccs ccee cche cchr cchs ccmb ccmc ccmm ccms ccnb ccnc ccne ccnm ccnr ccns ccrc ccre ccrs ccsn ccss cebs cec- cece cecm cecs ceeb ceec ceem cees cehs cemb ceme cemm cemr cems cen- cene cens cer- cerc cere cern cers cesc cese cesr cess chce chch chcm chcs cheb chec chee cheh chem chen cher ches chhs chmb chmc chmn chms chnb chnc chnm chnr chns chrb chrc chrn chrr chrs chsc chse chsh chsm chsr cmbc cmbs cmcc cmcs cmec cmes cmhc cmhs cmmb cmmc cmmn cmms cmnh cmrn cmrr cmrs cmsc cmse cmsn cnbc cnbm cnes cnhs cnrc cnrr cnss crbc crcc crce crcr cre- creb crec cree creh crem cren cres crhs crmb crmn crms crne crns crss csbm cscb cscc csce csch cscr cscs csec csee cseh csem cser cshs csmc csne csrc csrs csse cssm cssr ebbc ebbr ebbs ebcc eben eber ebes ebhs ecbc ecbe eccb eccc ecce eccm ecem eces eche echs ecne ecrc ecrm ecrr ecsc ecse ecss eecs eeee eees eehs eems eens eerc eers eese ehcc eheh ehen eher ehhs ehre embe embr embs emcc emcn emcs emen emer emes emhc emhs emme emms emne emre emrs emse emsh enb- enbn enbr ence ench encs enee enem ener enes enhs ennc enne enns enrs ense erbb erbe ercc erce erch ereb erec erem eren erer eres erhc erhs ermc erme erms erne erns errc erre errs erse ersh esbs escb esce esch escm escr escs esee esem esen eser eses eshs esme esmr esne esse essh hbbs hbes hbhs hbms hbrs hbss hcbc hcbs hccb hccc hcch hccs hchs hcmc hcmm hcms hcsc hcss hebb hebe hebr hech hecs heeb heem heer hees hehe hehn hehs hem- heme hems hene henh henn hens herb herc here herm hern herr hers hesc hesh hess hhhh hhhs hhms hmbs hmcs hmhb hmhs hmmm hmms hmsm hnce hncs hnhs hree hrhs hrrc hsbc hscc hscn hses hshs hsmm hsse mbbs mbcs mbes mbhs mbms mbrs mcbc mccc mces mchs mcmc mcrc mcse mcss mebe mec- mecc mece mech mecr mecs meem meen meer mees mehe mehr mehs memc meme memr mems men- menc mene menn