bbb bbc bbe bbk bbn bbs bbt bcb bcc bce bck bcn bcs bct be- beb bec bee bek ben bes bet bkb bkc bke bkk bkn bks bkt bnb bnc bne bnk bnn bns bnt bsb bsc bse bsk bsn bss bst btb btc bte btk btn bts btt c-- cbb cbc cbe cbk cbn cbs cbt ccb ccc cce cck ccn ccs cct ce- ceb cec cee cek cen ces cet ckb ckc cks ckt cn- cnb cnc cne cnn cns cnt csb csc cse csk csn css cst ctb ctc cte ctk ctn cts ctt ebb ebc ebe ebk ebn ebs ebt ec- ecb ecc ece eck ecn ecs ect eeb eec eee eek een ees eet ekb ekc eke eks ekt en- enb enc ene enk enn ens ent es- esb esc ese esk esn ess est etb etc ete etk etn ets ett k-t kbb kbc kbe kbk kbn kbs kcb kcc kce kck kcn kcs kct ke- keb kec kee kek ken kes ket kkb kkc kke kkk kkn kks kkt kn- knc kne knk knn knt ksb ksc kse ksk ksn kss kst ktb ktc kte ktk ktn kts ktt nbb nbc nbe nbk nbn nbs nbt ncb ncc nce nck ncn ncs nct ne- neb nec nee nek nen nes net nkc nke nkk nkn nks nkt nnb nnc nne nnk nnn nns nnt nsb nsc nse nsk nsn nss nst ntb ntc nte ntk ntn nts ntt sbb sbc sbe sbk sbn sbs sbt scb scc sce sck scn scs sct se- seb sec see sek sen ses set sk- skb skc ske skk sks skt snb snc sne snk snn sns snt ss- ssb ssc sse ssk ssn sss sst stb stc ste stk stn sts stt tbb tbc tbe tbk tbn tbs tbt tcb tcc tce tck tcn tcs tct te- teb tec tee tek ten tes tet tkb tkc tke tkk tks tkt tnb tnc tne tnk tnn tns tnt tsb tsc tse tsk tsn tss tst ttb ttc tte ttk ttn tts ttt

-ene bbbb bbbs bbeb bbet bcbc bcbs bccc bccs bcec bces bcet bcsc bcsn bcss bctc bcts bebb bebe beck becs beeb beek been bees beet beke beks bene benk benn bens bent bes- bese besk bess best betc bete bets bett bnet bnss bscs bseb bsec bsee bses bset bskt bsns bssc bsse bsts btcc btcs btec btek bten btss bttb cbbc cbbs cbcc cbce cbcn cbcs cbct cbec cbee cbet cbkn cbsc cbse cbsn cbtc ccbc ccbn cccb cccc cccs ccee ccnb ccnc ccne ccns ccsn ccss ccst cctb cctc cctt cebs cec- cece cecs cect ceeb ceec cees ceke cen- cene cens cent cesc cese cess cest cet- cete cets ckbc ckbe ckck ckcs cken cknb cknc ckns cknt cksb ckst cktb ckts cnbc cnes cnet cnss cntc cntk cscb cscc csce cscs csec csee cset csks csne csse cstc csts ctbs ctec cten ctne ctns ctsc ctsn ctss cttn ctts ebbc ebbs ebcc eben ebes ecbc ecbe eccb eccc ecce ecct eces ecks ecne ecsc ecse ecss ect- ectc ects eecs eeee eees eeke eeks eens eent eese eesk eetc eete eets ekeb ekek eken ekes eket ekne enb- enbn ence encs enee enes enke ennc enne enns ense enst ent- ente ents esbs escb esce escs esee esek esen eses eset eske esks esne esse esst estc este ests etbc etcc etcs etec etee eten etes etne etns ette ettn kbbb kbbc kbbe kbbk kbbs kbbt kbcb kbce kbck kbcs kbct kbeb kbec kbee kbek kben kbes kbet kbkb kbkk kbnn kbsb kbsk kbsn kbss kbst kbtb kbtc kbte kbtk kbtn kbts kbtt kcbc kcbk kcbs kccb kccc kcck kcct kceb kcec kcee kcet kckc kckk kckn kcnb kcns kcnt kcsb kcsc kcse kcsn kcss kcst kctb kctc kcte kctn kebb kebc kebe kebn kebt keck keek keen kees keet kekb kekc keke keks ken- kene kenk kenn kens kent kesb kesc kesk kesn kess kest ket- ketc kete ketk kets kett kkbb kkbe kkbn kkbs kkbt kkcb kkck kkcn kkcs kkct kken kkkk kknb kkne kknn kkns kknt kkse kksn kkss kkst kktc kktk kkts knbb knbc knbe knbn knbt kncb knce knck kncn knct kneb knec knee knek knen knes knet knkk knkt knnb knnk knns knsb knsc knse knsk knsn knss knst knte kntk kntn knts ksbc ksbn ksbs kscb ksce ksck kscn kscs ksec ksee ksek ksen kset kskb kske kskk kskn ksks ksnb ksnc ksnk ksnn ksns ksnt ksse kssn ksss ksst kstb kstc kste kstk kstn ksts kstt ktbb ktbc ktbn ktbt ktcc ktce ktck ktcs ktec ktee ktek kten ktkb ktkc ktke ktkk ktkn ktks ktkt ktnc ktne ktnk ktnn ktns ktnt ktsc ktsn ktst kttc kttk kttn ktts kttt nbbc nbcc nbcs ncbc ncbs nccc nccn nccs ncct ncec ncee ncen nces ncnc ncsc ncse ncss ncst nctc ncte nebb nebe nebn nebs necc nece neck necs nect neeb neen nees neet neke nene nens nent nesb nesc nese nesn ness nest net- netb nete nets nett nknt nnes nnnn nnss nntn nscc nscs nseb nsec nskk nssb nssc nsse nsss nstc nsts ntbc ntcc ntes ntsb ntsc ntss sbbs sbcc sbcs sbct sbse sbst sbtc sbtk sbtn sccc scce sccs scct scec scee scet sck- scnt scsc scsn scst sctc sctn scts se-c se-e se-k se-n se-s se-t sebe sebs sebt sec- secc sece seck secn secs sect seeb seec seek seen sees seet seke sekk sekt sene senn sens sent sesc sese sess sest set- setc sete sets sett skee sken skes sket skn- skss sncc sneb snee snes snet snns snte ssbn sscc ssce sscs ssec ssee sses sset ssns sssb sssc ssss sstb sstc ssts stbc stbs stcc stcs stec stee stek sten stes stet stks stnn stns stss sttc tbbs tbcb tbcc tbce tbst tcbs tccc tcnn tctc tcts teck tecs tect teec teek teen tees teet teke tenb tenc tene tenk tenn tens tent tesc