-er b-p bbb bbc bbe bbk bbn bbp bbr bcb bcc bce bck bcn bcp bcr be- beb bec bee bek ben bep ber bkb bkc bke bkk bkn bkp bkr bnb bnc bne bnk bnn bnp bnr bpb bpc bpe bpn bpp bpr brb bre brk brn brp brr c-- cbb cbc cbe cbk cbn cbp cbr ccb ccc cce cck ccn ccp ccr ce- ceb cec cee cek cen cep cer ckb ckc cn- cnb cnc cne cnn cnp cnr cpb cpc cpe cpk cpn cpp cpr crb crc cre crk crn crp crr ebb ebc ebe ebk ebn ebp ebr ec- ecb ecc ece eck ecn ecr eeb eec eee eek een eep eer ekb ekc eke ekp ekr en- enb enc ene enk enn enp enr ep- epb epc epe epn epp epr erb erc ere erk ern erp err kbb kbc kbe kbk kbn kbp kbr kcb kcc kce kck kcn kcp kcr ke- keb kec kee kek ken kep ker kkb kkc kke kkk kkn kkp kkr kn- knc kne knk knn knp knr kpc kpe kpk kpn kpp kpr krc krk krn krp krr nbb nbc nbe nbk nbn nbp nbr ncb ncc nce nck ncn ncp ncr ne- neb nec nee nek nen nep ner nkc nke nkk nkn nkp nkr nnb nnc nne nnk nnn nnp npb npc npe npn npp npr nrb nrc nre nrk nrn nrp nrr p-p pbb pbc pbe pbk pbn pbp pbr pcb pcc pce pck pcn pcp pcr peb pec pee pek pen pep per pkb pkc pke pkn pkp pkr pn- pnb pnc pne pnk pnn pnp pnr ppb ppc ppe ppk ppn ppp ppr prb prc pre prk prn prp prr rbb rbc rbe rbk rbn rbp rbr rcb rcc rce rcn rcp rcr re- reb rec ree rek ren rep rer rkb rkc rke rkk rkp rnb rnc rnn rnp rnr rpb rpc rpe rpk rpn rpp rpr rrb rrc rrk rrn rrp rrr

-ene bbbb bbeb bbpr bbrc bcbc bcbp bccc bcec bcer bcpp bebb bebe beck beeb beek been beep beer beke bene benk benn berc bere berk bern berr bkpr bner bnpp bnrr bpcp bprc brcb brce breb brec bree brek bren brep brer brkb brrr cbbc cbcc cbce cbcn cbcp cbcr cbec cbee cber cbkn cbkr cbpc cbpp cbre cbrn ccbc ccbn cccb cccc cccp ccee ccnb ccnc ccne ccnp ccnr ccpe ccpn ccpp ccpr ccrc ccre ccrp cebp cec- cece cecp ceeb ceec ceke cen- cene cepc cepe cepp cepr cer- cerc cere cern cerp ckbc ckbe ckck cken cker cknb cknc ckpc ckpr ckrc cnbc cnbp cncp cnep cnrc cnrr cpbc cpce cpeb cpep cper cpnb cpre crbc crcc crce crcr cre- creb crec cree cren crep crkc crkp crne crpc ebbc ebbr ebcc eben eber ecbc ecbe eccb eccc ecce ecne ecpp ecrc ecrr eeee eeke eerc ekeb ekek eken eker ekne ekpe enb- enbn enbr ence enee ener enke enkr ennc enne enp- epcc epec epee epen eper eppc eppp eprb eprp erbb erbe ercc erce ercp ereb erec eren erer erke erne erpe errc erre kbbb kbbc kbbe kbbk kbbr kbcb kbce kbck kbcr kbeb kbec kbee kbek kben kber kbkb kbkk kbkr kbnn kbnp kbnr kbpc kbpe kbpk kbpn kbpr kbrb kbrc kbre kbrk kbrn kcbc kcbk kcbr kccb kccc kcck kccr kceb kcec kcee kcep kckc kckk kckn kckr kcnb kcnp kcnr kcpc kcpn kcpr kcrc kcrn kcrp kcrr kebb kebc kebe kebn kebr keck kecr keek keen keep keer kekb kekc keke ken- kene kenk kenn kenr kep- kepc kepe kepn ker- kerb kerc kere kerk kern kerp kerr kkbb kkbe kkbn kkbr kkcb kkck kkcn kkcr kken kkkk kknb kkne kknn kkpc kkpk kkpn kkrb kkrc kkre kkrk kkrn kkrr knbb knbc knbe knbn knbr kncb knce knck kncn kncr kneb knec knee knek knen knep knkk knnb knnk knnr knpb knpc knpr knrb knrk kpbb kpbe kpbr kpcc kpcr kpek kper kpke kpkk kpkr kpnc kpne kpnp kppc kppk kppp kppr kprb kprc kpre kprk kprn kprp kprr krbb krbe krbk krbr krcb krcc krce krcn kreb krec kree krek kren krkc krke krkk krkn krkr krnb krne krnk krnn krnp krpr krrb krrc krre krrk krrn krrr nbbc nbcc nber nbpp ncbc nccc nccn nccp nccr ncec ncee ncen ncep ncer ncnc ncpc ncrc ncre ncrp nebb nebe nebn nebr necc nece neck necr neeb neen neep neer neke nene nepc nepe nepr nerc nere nerk nerr nnnn nnpr npcc nppc nren nrpc nrpn nrrc pbcc pbpk pcbc pccc pcce pcep pcer pcpb pcpn pcpp pcrc pcre pece peck pecr peec peek peen peep peer peke pekk pen- penc pene penk penn pepe per- perc pere perk pern perp perr pnec pnkp pnpp ppcc ppen pper pppn pppp pprc prbc prcc prcp pre- preb prec pree prek pren prep prnp rbbb rbbr rcbc rccb rccc rcep rcnr rebb rebe rebk recc rece reck recp recr reeb reek reen reep reke rene renk renn repe repp repr rere rnbr rncp rppn rrrr

b-r-k bbbee bcpnn be-er bebek beber becke beebe beeke beene beken beker bekke bence bene- benke benne bepen beppe berbe berck berec berek beren berk- berke berne berre bpeen brece breck breek breen breer breke brene brenk brenn brere brrrr c-p-c ccccc cebec ceber cebpb cebpe ceene ceere cence cenpk cenpn cerc- cerce cerec ceren cerer cerke cerne cerre cnnnn crebe crece creek creen creep creer creke cren- crepe crnce crnec crner ebber ebene ebern ebner eccen ecker eecke eeeee eence eener eepee ekene ekker ekren encke encre enker enper epeen epene eperc erbbe erben erber ereen erere erkec ernen k-p-r kebbe kebek keben keber kecer keene keepe keere kekec kenne keppe kerek keren kerep kerne kerre kneck kneen kneep knepp krbpe kreek kreep kreke krenn krepe krnce n-p-n ncree nebek neber necke necr- neece neere neker neper neppe neree nerre nnebe p-n-p p-rep pebre pecke peece peeke peene peere pekre pence penck pene- pener penne