-er bbb bbc bbd bbe bbh bbn bbr bbs bcb bcc bcd bce bch bcn bcr bcs bdb bdc bdd bde bdh bdr bds be- beb bec bed bee beh ben ber bes bhb bhc bhd bhe bhh bhr bhs bnb bnc bnd bne bnn bnr bns brb brd bre brh brn brr brs bsb bsc bsd bse bsh bsn bsr bss c-- cbb cbc cbd cbe cbh cbn cbr cbs ccb ccc ccd cce cch ccn ccr ccs cdb cdc cdd cde cdh cdn cdr cds ce- ceb cec ced cee ceh cen cer ces ch- chb chc chd che chh chn chr chs cn- cnb cnc cnd cne cnh cnn cnr cns crb crc crd cre crh crn crr crs csb csc csd cse csh csn csr css dbb dbc dbd dbe dbh dbn dbr dbs dcb dcc dcd dce dcn dcr dcs ddb ddc ddd dde ddh ddn ddr dds de- deb dec ded dee deh den der des dh- dhb dhc dhd dhe dhh dhr dhs dnb dnc dnd dne dnh dnn dnr dns drb drc drd dre drn drr drs dsb dsc dsd dse dsh dsn dsr dss ebb ebc ebd ebe ebh ebn ebr ebs ec- ecb ecc ecd ece ech ecn ecr ecs ed- edb edc edd ede edh edn edr eds eeb eec eed eee een eer ees ehb ehc ehd ehe ehh ehn ehr ehs en- enb enc end ene enh enn enr ens erb erc erd ere erh ern err ers es- esb esc esd ese esh esn esr ess hbb hbc hbd hbe hbh hbn hbr hbs hcb hcc hcd hce hch hcn hcr hcs hdb hdc hdd hde hdh hdn hdr hds he- heb hec hed hee heh hen her hes hhb hhc hhd hhe hhh hhn hhr hhs hnb hnc hnd hne hnh hnn hns hr- hrb hrc hrd hre hrh hrn hrr hrs hsb hsc hsd hse hsh hsn hsr hss nbb nbc nbd nbe nbn nbr nbs ncb ncc ncd nce nch ncn ncr ncs ndb ndc ndd nde ndh ndn ndr nds ne- neb nec ned nee neh nen ner nes nhb nhc nhd nhe nhh nhn nhr nhs nnb nnc nne nnh nnn nns nrb nrc nrd nre nrn nrr nrs nsb nsc nsd nse nsh nsn nsr nss rbb rbc rbd rbe rbh rbn rbr rbs rcb rcc rcd rce rch rcn rcr rcs rdb rdc rdd rde rdh rdn rdr rds re- reb rec red ree reh ren rer res rh- rhb rhc rhd rhe rhh rhn rhr rhs rnb rnc rnd rnh rnn rnr rns rrb rrc rrd rrh rrn rrr rrs rsb rsc rsd rse rsh rsn rsr rss sbb sbc sbd sbe sbh sbn sbr sbs scb scc scd sce sch scn scr scs sdb sdc sdd sde sdh sdn sdr sds se- seb sec sed see seh sen ser ses sh- shb shc shd she shh shn shr shs snb snc snd sne snn snr sns sr- srb src srd sre srh srn srr srs ss- ssb ssc ssd sse ssh ssn ssr sss

-ene bbbb bbbs bbch bbdd bbeb bbhs bbrc bcbc bcbs bccc bccs bcde bcds bcec bcer bces bchd bche bchs bcrs bcsc bcsn bcss bd-r bdbc bddc bddh bdes bdhs bdsd bebb bebe bech becs bede beds beeb beed been beer bees behn behr behs bend bene benn bens berc berd bere bern berr bers bes- bese besh bess bhcc bher bhhs bner bnhs bnrr bnss brcb brce brds breb brec bred bree bren brer bres brhs brns brrr brrs brsb brsr bsbd bscs bseb bsec bsed bsee bser bses bshs bsnd bsns bsrd bssc bssd bsse c-cd cbbc cbbs cbcc cbce cbcn cbcr cbcs cbdb cbdc cbdn cbds cbec cbee cber cbhs cbnd cbrd cbre cbrh cbrn cbsc cbse cbsn ccbc ccbn cccb cccc cccs ccdc ccdh ccdn ccdr ccds cced ccee cche cchr cchs ccnb ccnc ccne ccnr ccns ccrc ccre ccrs ccsd ccsn ccss cd-e cd-r cdcs cddb cddr cdec cder cdes cdhs cdnb cdnc cdre cdrs cdss cebs cec- cece cecs cedd cede ceeb ceec cees cehs cen- cend cene cens cer- cerc cerd cere cern cers cesc cese cesr cess chce chch chcs cheb chec ched chee cheh chen cher ches chhs chnb chnc chnr chns chrb chrc chrd chrn chrr chrs chsc chse chsh chsr cnbc cndd cnes cnhs cnrc cnrr cnss crbc crcc crce crcr crdc cre- creb crec cred cree creh cren cres crhs crne crns crss cscb cscc cscd csce csch cscr cscs csdb csdn csdr csec csee cseh cser cshs csne csrc csrd csrs cssd csse cssr dbcc dbcs dbhs dbrn dbrs dbss dcbc dccb dccc dccs dcdb dcds dche dchs dcns dcsc dcss dddd ddes ddrc ddre ddss debe debs dec- decc decd dece decs dedd dede deeb deed deen deer dees dehn dene denn dens der- derb derc dere dern derr ders des- desc dese desh dess dhec dhed dhee dher dhrn dnce dncs dner dnhs dnrc dnsc drbc dred dree dreh dren dres drhs drnh drrs dsbc dscc dsch dscn dscr dscs dsdr dshs dsrc dsrr dssc dssn ebbc ebbr ebbs ebcc ebed eben eber ebes ebhs ecbc ecbe eccb eccc ecce ecdc eced eces eche echs ecne ecrc ecrr ecsc ecse ecss eddc edde edds ede- edeh eden eder edes edhs edns edrn edss eecs eede eeee eees eehs eend eens eerc eers eese ehcc ehdd eheh ehen eher ehhs ehre enb- enbn enbr ence ench encs end- ende endh ends ened enee ener enes enhs ennc enne enns enrs ense erbb erbe ercc erce erch erde erds ereb erec ered eren erer eres erhc erhs erne erns errc erre errs erse ersh esbs escb esce esch escr escs esds esee esen eser eses eshs esne esrd esse essh hbbs hbcd hbds hbes hbhs hbrs hbss hcbc hcbs hccb hccc hcch hccs hcdr hchs hcrd hcsc hcss hdhs hdss hebb hebe hebr hech hecs hedd hede heds heeb heed