a-be aaaa aaab aaac aaad aaae aaam aaap aaar aaba aabb aabc aabd aabm aabp aaca aacb aacc aacd aace aacm aacp aacr aada aadc aade aaea aaec aaem aaep aama aamb aamc aamd aame aamp aamr aapa aapc aapm aara aarc aard aare aarm aarp abaa abab abac abad abae abam abap abar abb- abba abbb abbe abbr abca abcb abcc abcd abcp abcr abda abec abed abee aber abma abmb abmc abpa abpc abpd abpm abpp abpr abra abrc acaa acab acac acad acae acap acar acba acca accc accd acce accm accp acda acdb acdc acde acdm acdp ace- acea acec aced acem acer acma acmc acme acmp acpa acpd acpe acpm acpr acr- acra acrc acre acrm acrr adaa adab adac adad adae adam adap adar adba adbc adcc adda addc addd adde addr adea adeb adee adem ader adma admb adme admr adp- adra adre aeac aeap aecb aede aeer aer- aera aerc aerd amaa amac amad amae amam amap amar amb- amba ambe ambr amca amcc amda amec amed amee amer amm- amma amme ampa ampc ampd ampe ampm amra amrc apac apam apap apar apba apbr apca apcb apcc apcd apcm apcr apda apdd apea apec aped apem apep aper apma appa appc appd appr apra aprc apre arab arac arad arae aram arap arar arba arbe arc- arca arce arcm arda ardc arde ardm area arec ared aree arem arep arma armc armd arme armm arpa arpe arr- arra arrc arre arrr baaa baad baam baar baba babb babe babm babr bac- baca bacc bace bada badb badd bade badr baed baer bama bamb bamc bame bamm bamp bapa bapc bape bapp bar- bara barb barc bard bare barm barr bbad bbbb bbcm bbdd bbeb bbpr bbrc bcaa bcam bcap bcar bcbc bcbp bcca bccc bccm bcda bcde bcec bcer bcma bcmp bcpp bcra bd-r bdbc bddc bdpc bdrm bead beam beap bear beba bebb bebe beca beda bede beeb beed beem beep beer bema beme bera berc berd bere berm berr bmaa bmce bmdb bmdp bmep bpcp bpda bpea bpmc bprc bprd brab brac brad brae bram brca brcb brce brda brdm brea breb brec bred bree brem brep brer brmc brrm brrr c-cd caaa caab caac caam caap caba cabe cac- caca cacc cace cacm cacr cada cadc cadd cade cadm cadr caec caem caer cama camb camc came camm camp capa capb capc capd cape capm capp cara carb carc card care carm carp carr cbac cbar cbbc cbca cbcc cbce cbcm cbcp cbcr cbdb cbdc cbea cbec cbee cber cbme cbpc cbpp cbrd cbre cbrm ccaa ccab ccac ccad ccam ccap ccar ccba ccbc ccca cccb cccc cccm cccp ccdc ccdm ccdp ccdr cced ccee ccma ccmb ccmc ccmd ccmm ccmp ccpa ccpe ccpm ccpp ccpr ccra ccrc ccre ccrp cd-e cd-r cdaa cdac cdad cdba cdda cddb cddr cdec cder cdma cdre ceac cead cear ceba cebp cec- ceca cece cecm cecp ceda cedd cede ceeb ceec ceem cema cemb ceme cemm cemp cemr cepa cepc cepe cepp cepr cer- cera cerc cerd cere cerp cmaa cmac cmap cmba cmbc cmcc cmda cmdb cmdr cmea cmec cmmb cmmc cmpa cmpc cmpd cmpp cmra cmrr cpaa cpac cpad cpam cpap cpbc cpca cpce cpcm cpea cpeb cpep cper cpma cpme cpmp cppa cppd cppm cpre cprm crab crac cram crap crar crbc crca crcc crce crcr crda crdc cre- crea creb crec cred cree crem crep crmb crmp crpc daab daad daae daam daap daar daba dabb dabp daca dace dada dade daeb daem daer dama damb dame damm damp dapa dape dapp dara darb darc dard dare darp darr dbar dbcc dbcp dbpc dbpd dcbc dcca dccb dccc dccp dcdb dcma dcmp dcra dddd ddrc ddre deac dead deae deap dear deba debe dec- deca decc decd dece deda dedd dede deeb deed deem deep deer dem- dema demb demd deme depa depc depe depp depr der- dera derb derc dere derm derp derr dmaa dmab dmac dmae dmap dmba dmcc dmcm dmdc dmea dmpa dmrb dmrc dpaa dpac dpbc dpcp dper dpma dppa dppc draa drab drac drad dram drap drar drba drbc drca drda drea dred dree drem drra eaba eaca eacc eada eadb eadd eadp eaec eama eame eapc eapp eara earb eard eare earp ebac ebam ebba ebbc ebbr ebcc ebed eber ecaa ecac ecad ecam ecar ecbc ecbe ecca eccb eccc ecce eccm ecdc eced ecem ecma ecmp ecpa ecpd ecpm ecpp ecra ecrc ecrm ecrr edac edad edam edar edca edda eddc edde eddm eddp ede- edea edem eder edma edme edra edrm eeca eede eeea eeee eera eerc emac emad emae emam emar emba embd embe embr emcc emer emma emme empa empc empd empe emra emre epaa epac epad epam epbm epcc epec epee eper epmd eppa eppc eppp epra eprb eprp erad eram erap erba erbb erbe erca ercc erce ercp erda erde ereb erec ered erem erer erma ermc erme erpa erpe erra errc erre maaa maac maad maam maap maar maba mabe mac- maca macb macc macd mace macp macr mada madb madc madd made maee maem maer mama mamc mame mamp mapa mape mapp mapr mar- mara marc mard mare marm marr mbac mbam mbba mbca mbda mbdb mbed mcaa mcac mcad mcap mcba mcbc mcca mccc mccd mcdc mcdd mcde mced mcep mcmc mcpa mcpb mcpc mcpd mcpp mcrc mcrd mdac mdca mdcc mddm mdea mdma mdmc mdme mdmp mdpc mdpp mdra mdrc mead meap mear mebe mec- meca mecc mecd mece mecr meda medb medd mede meed meem meep meer mema memc meme memr mepe mer- mera merb merc merd mere merm merp mmaa mmab mmac mmap mmar mmcc mmcd mmcm mmda mmdb mmdc mmea mmmc mmmd mmmm mmpa mmpc mmpr mmrc mmrp mpaa mpac mpca mpcc mpec mpmc mppc mppe mppp mprp mr-c mrac mrad mrap mrbb mrbm mrca mrcb mrcc mrce mrcp mrda mrdd mreb mred mree mrmc mrmd mrpa mrrc