-up b-p b-u bbb bbc bbe bbn bbp bbs bbt bbu bcb bcc bce bcn bcp bcs bct bcu be- beb bec bee ben bep bes bet beu bnb bnc bne bnn bnp bns bnt bnu bpb bpc bpe bpn bpp bps bpt bpu bsb bsc bse bsn bsp bss bst bsu btb btc bte btn btp bts btt btu bub buc bue bun bup bus but buu c-- cbb cbc cbe cbn cbp cbs cbt cbu ccb ccc cce ccn ccp ccs cct ccu ce- ceb cec cee cen cep ces cet ceu cn- cnb cnc cne cnn cnp cns cnt cnu cpb cpc cpe cpn cpp cps cpt cpu csb csc cse csn csp css cst csu ctb ctc cte ctn ctp cts ctt ctu cub cuc cue cun cup cus cut cuu ebb ebc ebe ebn ebp ebs ebt ebu ec- ecb ecc ece ecn ecs ect ecu eeb eec eee een eep ees eet en- enb enc ene enn enp ens ent enu ep- epb epc epe epn epp eps ept epu es- esb esc ese esn esp ess est esu etb etc ete etn etp ets ett etu eu- eub euc eue eun eup eus eut nbb nbc nbe nbn nbp nbs nbt nbu ncb ncc nce ncn ncp ncs nct ncu ne- neb nec nee nen nep nes net neu nnb nnc nne nnn nnp nns nnt nnu npb npc npe npn npp nps npt npu nsb nsc nse nsn nsp nss nst nsu ntb ntc nte ntn ntp nts ntt ntu nub nuc nue nun nup nus nut nuu p-p pbb pbc pbe pbn pbp pbs pbt pbu pcb pcc pce pcn pcp pcs pct pcu peb pec pee pen pep pes pet peu pn- pnb pnc pne pnn pnp pns pnt pnu ppb ppc ppe ppn ppp pps ppt ppu ps- psb psc pse psn psp pss pst psu pt- ptb ptc pte ptn ptp pts ptt ptu pub puc pue pun pup pus put puu sbb sbc sbe sbn sbp sbs sbt sbu scb scc sce scn scp scs sct scu se- seb sec see sen sep ses set seu snb snc sne snn snp sns snt snu spb spc spe spn spp sps spt spu ss- ssb ssc sse ssn ssp sss sst ssu stb stc ste stn stp sts stt stu sub suc sue sun sup sus sut suu tbb tbc tbe tbn tbp tbs tbt tbu tcb tcc tce tcn tcp tcs tct tcu te- teb tec tee ten tep tes tet teu tnb tnc tne tnn tnp tns tnt tpb tpc tpe tpn tpp tps tpt tpu tsb tsc tse tsn tsp tss tst tsu ttb ttc tte ttn ttp tts ttt ttu tub tuc tue tun tup tus tut tuu ubb ubc ube ubn ubp ubs ubt ubu ucb ucc uce ucn ucp ucs uct ucu ueb uec uee uen uep ues uet un- unb unc une unn unp uns unt unu up- upb upc upe upn upp ups upt upu usb usc use usn usp uss ust usu utb utc ute utn utp uts utt utu uuc uue uun uus uut uuu

-ene bbbb bbbs bbeb bbet bcbc bcbp bcbs bccc bccs bcec bces bcet bcnu bcpp bcps bcsc bcsn bcss bctc bcts bcuc bcup bebb bebe becs becu beeb been beep bees beet bene benn bens bent benu bes- bese bess best betc bete bets bett betu bnet bnpp bnss bpcp bpsu bscp bscs bseb bsec bsee bses bset bsns bspp bssc bsse bsts bsup btbp btcc btcs btec bten btps btss bttb btus bubb bube bubs bubu bucc buce bucs bucu buen bueu bunb bune bunn buns bunt bunu bupc bups busc buse buss bust busu but- bute buts butt buus cbbc cbbs cbcc cbce cbcn cbcp cbcs cbct cbcu cbec cbee cbet cbpc cbpp cbsc cbse cbsn cbtc cbus ccbc ccbn cccb cccc cccp cccs cccu ccee ccnb ccnc ccne ccnp ccns ccnu ccpe ccpn ccpp ccps ccsn ccsp ccss ccst cctb cctc cctt ccuc ccup ccus ccut cebp cebs cebu cec- cece cecp cecs cect ceeb ceec cees cen- cene cens cent cepc cepe cepp ceps cept cesc cese cesp cess cest cet- cete cetp cets cnbc cnbp cncp cnep cnes cnet cnss cntc cnut cpbc cpce cpcs cpcu cpeb cpep cpnb cpns cpnt cpps cpsc cpsu cptp cpts cpus cscb cscc csce cscs csec csee csep cset csne csnp cspb cspc cspe csps cspt csse cstc csts csup csus ctbs ctcp ctec cten ctep ctne ctns ctpp ctps ctsc ctsn ctss ctsu cttn ctts cub- cubb cube cubs cucc cuce cucn cues cune cunp cunt cupe cupp cups cusb cusp cuss cust cusu cut- cutc cute cuts cutt ebbc ebbs ebcc eben ebes ebus ecbc ecbe eccb eccc ecce ecct eces ecne ecpp ecsc ecse ecsp ecss ecsu ect- ectc ects ecus eecs eeee eees eens eent eeps eese eetc eete eets eetu enb- enbn ence encs enee enes ennc enne enns ennu enp- ense enst ensu ent- ente entp ents enue enus enut epcc epec epee epen epes epns eppc eppp epps epsc epsp epss epte epub epus esbs escb esce escs escu esee esen eses eset esne espc espe espn espp esps esse essp esst essu estc este estp ests esus etbc etcc etcs etec etee eten etes etne etns etsu ette ettn ettu etun eubc euse n-up nbbc nbcc nbcs nbpp nbps nbsp ncbc ncbs nccc nccn nccp nccs ncct nccu ncec ncee ncen ncep nces ncnc ncpc ncsc ncse ncss ncst nctc ncte ncue nebb nebe nebn nebs nebu necc nece necs nect neeb neen neep nees neet nene nens nent nenu nepc nepe neps nept nesb nesc nese nesn ness nest net- netb nete nets nett neuc neue neun neut neuu nnes nnnn nnss nntn npcc npes nppc npss nptc npte nptn nscc nscs nseb nsec nsep nspc nsps nssb nssc nsse nssp nsss nstc nstp nsts nstu nsub ntbc ntcc ntes nteu ntnu ntpc