a-ak a-be aaaa aaab aaac aaae aaam aaap aaar aaba aabb aabc aabm aabp aaca aacb aacc aace aack aacm aacp aacr aaea aaec aaem aaep aaka aake aama aamb aamc aame aamp aamr aapa aapc aapm aara aarc aare aarm aarp abaa abab abac abae abak abam abap abar abb- abba abbb abbe abbr abca abcb abcc abcp abcr abec abee aber abma abmb abmc abpa abpc abpm abpp abpr abra abrc acaa acab acac acae acap acar acba acca accc acce accm accp ace- acea acec acek acem acer acke acma acmc acme acmp acpa acpe acpm acpr acr- acra acrc acre acrm acrr aeac aeap aecb aeer aeka aer- aera aerc akaa akae akam akap akar akca akee aker akka akr- akra akre amaa amac amae amam amap amar amb- amba ambe ambr amca amcc amec amee amer amka amm- amma amme ampa ampc ampe ampk ampm amra amrc apac apak apam apap apar apba apbr apca apcb apcc apcm apcr apea apec apem apep aper apke apma appa appc appr apra aprc apre arab arac arae arak aram arap arar arba arbe arc- arca arce arcm area arec aree arek arem arep arka arke arma armc arme armm arpa arpe arr- arra arrc arre arrk arrr baaa baak baam baar baba babb babe babm babr bac- baca bacc bace back baek baer bak- baka bake bakr bama bamb bamc bame bamm bamp bapa bapc bape bapp bar- bara barb barc bare bark barm barr bbbb bbcm bbeb bbpr bbrc bcaa bcam bcap bcar bcbc bcbp bcca bccc bccm bcec bcer bcma bcmp bcpp bcra beak beam beap bear beba bebb bebe beca beck beeb beek beem beep beer beka beke bema beme bera berc bere berk berm berr bkpr bmaa bmce bmep bpcp bpea bpmc bprc brab brac brae brak bram brca brcb brce brea breb brec bree brek brem brep brer brka brkb brmc brrm brrr caaa caab caac caam caap caba cabe cac- caca cacc cace cack cacm cacr caec caem caer caka cake cama camb camc came camk camm camp capa capb capc cape capm capp cara carb carc care cark carm carp carr cbac cbar cbbc cbca cbcc cbce cbcm cbcp cbcr cbea cbec cbee cber cbka cbkm cbkr cbme cbpc cbpp cbre cbrm ccaa ccab ccac ccam ccap ccar ccba ccbc ccca cccb cccc cccm cccp ccee cckm ccma ccmb ccmc ccmm ccmp ccpa ccpe ccpm ccpp ccpr ccra ccrc ccre ccrp ceac cear ceba cebp cec- ceca cece cecm cecp ceeb ceec ceem ceke cema cemb ceme cemm cemp cemr cepa cepc cepe cepp cepr cer- cera cerc cere cerp ckac ckbc ckbe ckck ckcm ckem cker ckmp ckpc ckpr ckrc ckrm cmaa cmac cmap cmba cmbc cmcc cmea cmec cmmb cmmc cmpa cmpc cmpk cmpp cmra cmrr cpaa cpac cpam cpap cpbc cpca cpce cpcm cpea cpeb cpep cper cpma cpme cpmp cppa cppm cpre cprm crab crac cram crap crar crbc crca crcc crce crcr cre- crea creb crec cree crem crep crkc crkp crmb crmp crpc eaba eaca eacc eaec eama eame eapc eapp eara earb eare earp ebac ebam ebba ebbc ebbr ebcc eber ecaa ecac ecam ecar ecbc ecbe ecca eccb eccc ecce eccm ecem ecka ecma ecmp ecpa ecpm ecpp ecra ecrc ecrm ecrr eeca eeea eeee eeka eeke eera eerc eka- ekab ekam ekeb ekek eker ekka ekma ekpe emac emae emam emar emba embe embr emcc emek emer emma emme empa empc empe emra emre epaa epac epam epbm epcc epec epee eper eppa eppc eppp epra eprb eprp eram erap erba erbb erbe erca ercc erce ercp ereb erec erem erer erke erma ermc erme erpa erpe erra errc erre kaaa kaab kaak kaam kaap kaar kaba kabb kabc kabe kabr kacb kacc kace kacp kaep kaer kaka kakc kake kakk kakm kam- kama kamb kamc kame kamm kamp kamr kap- kapa kapc kape kapp kara karb kare kark karm karp karr kbaa kbab kbac kbae kbak kbam kbap kbar kbba kbbb kbbc kbbe kbbk kbbm kbbr kbca kbcb kbce kbck kbcr kbeb kbec kbee kbek kber kbkb kbkk kbkr kbmb kbmc kbme kbmp kbmr kbpa kbpc kbpe kbpk kbpr kbra kbrb kbrc kbre kbrk kcaa kcab kcac kcam kcap kcar kcba kcbc kcbk kcbr kcca kccb kccc kcck kccr kcea kceb kcec kcee kcep kckc kckk kckm kckr kcmb kcmc kcme kcmk kcmm kcmp kcmr kcpa kcpc kcpm kcpr kcrc kcrp kcrr kea- keak keam keap kear keba kebb kebc kebe kebr keca keck kecr keek keem keep keer keka kekb kekc keke kema kemb kemc keme kemm kemp kemr kep- kepa kepc kepe ker- kera kerb kerc kere kerk kerm kerp kerr kkaa kkac kkam kkap kkar kkba kkbb kkbe kkbr kkcb kkck kkcm kkcr kkea kkkk kkma kkmc kkmk kkmp kkmr kkpc kkpk kkrb kkrc kkre kkrk kkrr kmac kmae kmak kmam kmap kmbc kmbr kmca kmcb kmcc kmce kmcm kmcr kmea kmem kmer kmke kmkk kmme kmmk kmmm kmmr kmpa kmpb kmpc kmpr kmrb kmrc kmrr kpac kpae kpak kpam kpar kpba kpbb kpbe kpbm kpbr kpcc kpcr kpek kper kpke kpkk kpkr kpmb kpmp kpmr kppc kppk kppp kppr kprb kprc kpre kprk kprm kprp kprr krab krac krae krak kram krap krar krba krbb krbe krbk krbm krbr krca krcb krcc krce krcm krea kreb krec kree krek krem krka krkc krke krkk krkr krma krmb krmc krme krmp krmr krpa krpm krpr krrb krrc krre krrk krrm krrr maaa maac maak maam maap maar maba mabe mac- maca macb macc mace mack macp macr maee maem maer maka make mama mamc mame mamp mapa mape mapp mapr mar- mara marc mare mark marm marr mbac mbam mbba mbca mcaa mcac mcap mcba mcbc mcca mccc mcep mckk mcmc mcpa mcpb mcpc mcpp mcrc meak meap mear mebe mec- meca mecc mece meck mecr meek meem meep meer meka meke mema memc meme memr mepe mer- mera merb merc mere merk merm merp mkak mker