-er b-u bbb bbc bbe bbn bbr bbs bbt bbu bcb bcc bce bcn bcr bcs bct bcu be- beb bec bee ben ber bes bet beu bnb bnc bne bnn bnr bns bnt bnu brb bre brn brr brs brt bru bsb bsc bse bsn bsr bss bst bsu btb btc bte btn btr bts btt btu bub buc bue bun bur bus but buu c-- cbb cbc cbe cbn cbr cbs cbt cbu ccb ccc cce ccn ccr ccs cct ccu ce- ceb cec cee cen cer ces cet ceu cn- cnb cnc cne cnn cnr cns cnt cnu crb crc cre crn crr crs crt cru csb csc cse csn csr css cst csu ctb ctc cte ctn ctr cts ctt ctu cub cuc cue cun cur cus cut cuu ebb ebc ebe ebn ebr ebs ebt ebu ec- ecb ecc ece ecn ecr ecs ect ecu eeb eec eee een eer ees eet en- enb enc ene enn enr ens ent enu erb erc ere ern err ers ert eru es- esb esc ese esn esr ess est esu etb etc ete etn etr ets ett etu eu- eub euc eue eun eur eus eut nbb nbc nbe nbn nbr nbs nbt nbu ncb ncc nce ncn ncr ncs nct ncu ne- neb nec nee nen ner nes net neu nnb nnc nne nnn nns nnt nnu nrb nrc nre nrn nrr nrs nrt nru nsb nsc nse nsn nsr nss nst nsu ntb ntc nte ntn ntr nts ntt ntu nub nuc nue nun nur nus nut nuu rbb rbc rbe rbn rbr rbs rbt rbu rcb rcc rce rcn rcr rcs rct rcu re- reb rec ree ren rer res ret reu rnb rnc rnn rnr rns rnt rnu rrb rrc rrn rrr rrs rrt rru rsb rsc rse rsn rsr rss rst rsu rtb rtc rte rtn rtr rts rtt rtu rub ruc rue run rur rus rut ruu sbb sbc sbe sbn sbr sbs sbt sbu scb scc sce scn scr scs sct scu se- seb sec see sen ser ses set seu snb snc sne snn snr sns snt snu sr- srb src sre srn srr srs srt ss- ssb ssc sse ssn ssr sss sst ssu stb stc ste stn str sts stt stu sub suc sue sun sur sus sut suu tbb tbc tbe tbn tbr tbs tbt tbu tcb tcc tce tcn tcr tcs tct tcu te- teb tec tee ten ter tes tet teu tnb tnc tne tnn tnr tns tnt trb trc tre trn trr trs trt tru tsb tsc tse tsn tsr tss tst tsu ttb ttc tte ttn ttr tts ttt ttu tub tuc tue tun tur tus tut tuu ubb ubc ube ubn ubr ubs ubt ubu ucb ucc uce ucn ucr ucs uct ucu ueb uec uee uen uer ues uet un- unb unc une unn unr uns unt unu ur- urb urc ure urn urr urs urt uru usb usc use usn usr uss ust usu utb utc ute utn utr uts utt utu uuc uue uun uur uus uut uuu

-ene bbbb bbbs bbeb bbet bbrc bcbc bcbs bccc bccs bcec bcer bces bcet bcnu bcrs bcru bcsc bcsn bcss bctc bcts bcuc bebb bebe becs becu beeb been beer bees beet bene benn bens bent benu berc bere bern berr bers bert beru bes- bese bess best betc bete bets bett betu beur bner bnet bnrr bnss brcb brce breb brec bree bren brer bres bret brns brrr brrs brsb brsr brst brtc bruc brue brun brus brut bscs bseb bsec bsee bser bses bset bsns bssc bsse bsts btcc btcs btec bten btrc btrt btss bttb btus bubb bube bubs bubu bucc buce bucs bucu buen buer bueu bunb bune bunn buns bunt bunu bur- burb bure burn burr burs burt buru busc buse buss bust busu but- bute buts butt buus cbbc cbbs cbcc cbce cbcn cbcr cbcs cbct cbcu cbec cbee cber cbet cbre cbrn cbrt cbsc cbse cbsn cbtc cbus ccbc ccbn cccb cccc cccs cccu ccee ccnb ccnc ccne ccnr ccns ccnu ccrc ccre ccrs ccrt ccsn ccss ccst cctb cctc cctt ccuc ccus ccut cebs cebu cec- cece cecs cect ceeb ceec cees cen- cene cens cent cer- cerc cere cern cers cert cesc cese cesr cess cest cet- cete cets cnbc cnes cnet cnrc cnrr cnrt cnss cntc cntr cnut crbc crbu crcc crce crcr cre- creb crec cree cren cres cret creu crne crns crrt crss crst crtc crts crub crue crun crus crut cscb cscc csce cscr cscs csec csee cser cset csne csrc csrs csse cssr cstc cstr csts csur csus ctbs ctec cten ctne ctns ctrc ctrn ctrs ctsc ctsn ctss ctsu cttn ctts cub- cubb cube cubs cucc cuce cucn cuer cues cune cunt curb cure curn curr curs curt cusb cuss cust cusu cut- cutc cute cuts cutt ebbc ebbr ebbs ebcc eben eber ebes ebru ebur ebus ecbc ecbe eccb eccc ecce ecct eces ecne ecrc ecrr ecru ecsc ecse ecss ecsu ect- ectc ects ecus eecs eeee eees eens eent eerc eers eese eetc eete eets eetu enb- enbn enbr ence encs enee ener enes ennc enne enns ennu enrs ense enst ensu ent- ente entr ents enue enur enus enut erbb erbe ercc erce ereb erec eren erer eres eret erne erns errc erre errs erse erst erts ertu erub eruc erur erus esbs escb esce escr escs escu esee esen eser eses eset esne esse esst essu estc este estr ests esus etbc etbr etcc etcs etec etee eten eter etes etne etnr etns etre etsu ette ettn ettu etun eubc euer eur- eurc eure eurt euse nbbc nbcc nbcs nber ncbc ncbs nccc nccn nccr nccs ncct nccu ncec ncee ncen ncer nces ncnc ncrc ncre ncsc ncse ncss ncst nctc ncte nctr ncue nebb nebe nebn nebr nebs nebu necc nece necr necs nect neeb neen neer nees neet nene