a-a a-b a-c aaa aab aac aad aae aak aam ab- aba abb abc abd abe abk abm ac- aca acb acc acd ace ack acm ad- ada adb adc add ade adk adm aea aeb aec aed aee aek aem aka akb akc akd ake akk akm ama amb amc amd ame amk amm baa bab bac bad bae bak bam bba bbb bbc bbd bbe bbk bbm bca bcb bcc bcd bce bck bcm bda bdb bdc bdd bde bdk bdm be- bea beb bec bed bee bek bem bka bkb bkc bke bkk bkm bma bmb bmc bmd bme bmk bmm c-- caa cab cac cad cae cak cam cba cbb cbc cbd cbe cbk cbm cca ccb ccc ccd cce cck ccm cda cdb cdc cdd cde cdk cdm ce- cea ceb cec ced cee cek cem cka ckb ckc ckd ckm cma cmb cmc cmd cme cmk cmm daa dab dac dad dae dak dam dba dbb dbc dbd dbe dbk dbm dca dcb dcc dcd dce dck dcm dda ddb ddc ddd dde ddk ddm de- dea deb dec ded dee dek dem dka dkb dkc dke dkk dkm dma dmb dmc dmd dme dmk dmm eaa eab eac ead eae eak eam eba ebb ebc ebd ebe ebk ebm ec- eca ecb ecc ecd ece eck ecm ed- eda edb edc edd ede edk edm eea eeb eec eed eee eek eem eka ekb ekc ekd eke em- ema emb emc emd eme emk emm ka- kaa kab kac kad kae kak kam kba kbb kbc kbd kbe kbk kbm kca kcb kcc kcd kce kck kcm kda kdb kdc kde kdk kdm ke- kea keb kec ked kee kek kem kkb kkc kke kkk kkm kma kmb kmc kmd kme kmk kmm maa mab mac mad mae mak mam mba mbb mbc mbd mbe mbk mbm mc- mca mcb mcc mcd mce mck mcm mda mdb mdc mdd mde mdk mdm mea meb mec med mee mek mem mka mkb mkc mkd mke mkk mkm mma mmb mmc mmd mme mmk mmm

a-ak a-be aaaa aaab aaac aaad aaae aaam aaba aabb aabc aabd aabm aaca aacb aacc aacd aace aack aacm aada aadc aade aaea aaec aaem aaka aake aama aamb aamc aamd aame abaa abab abac abad abae abak abam abb- abba abbb abbe abca abcb abcc abcd abda abec abed abee abma abmb abmc acaa acab acac acad acae acba acca accc accd acce accm acda acdb acdc acde acdm ace- acea acec aced acek acem ackd acke acma acmc acme adaa adab adac adad adae adak adam adba adbc adcc adda addc addd adde adea adeb adee adem adma admb adme aeac aecb aede aeka akaa akae akam akca aked akee akka amaa amac amad amae amam amb- amba ambe amca amcc amda amec amed amee amka amm- amma amme baaa baad baak baam baba babb babe babm bac- baca bacc bace back bada badb badd bade baed baek bak- baka bake bama bamb bamc bame bamm bbad bbbb bbcm bbdd bbeb bcaa bcam bcbc bcca bccc bccm bcda bcde bcec bcma bdbc bddc bead beak beam beba bebb bebe beca beck beda bede beeb beed beek beem beka beke bema beme bmaa bmce bmdb c-cd caaa caab caac caam caba cabe cac- caca cacc cace cack cacm cada cadc cadd cade cadm caec caem caka cake cama camb camc came camk camm cbac cbbc cbca cbcc cbce cbcm cbdb cbdc cbea cbec cbee cbka cbkm cbme ccaa ccab ccac ccad ccam ccba ccbc ccca cccb cccc cccm ccdc ccdm cced ccee cckm ccma ccmb ccmc ccmd ccmm cd-e cdaa cdac cdad cdba cdda cddb cdec cdma ceac cead ceba cec- ceca cece cecm ceda cedd cede ceeb ceec ceem ceke cema cemb ceme cemm ckac ckbc ckbe ckck ckcm ckdm ckem cmaa cmac cmba cmbc cmcc cmda cmdb cmea cmec cmmb cmmc daab daad daae daam daba dabb daca dace dada dade daeb daem daka dake dama damb dame damm dbcc dcbc dcca dccb dccc dcdb dcma dddd deac dead deae deak deba debe dec- deca decc decd dece deck deda dedd dede deeb deed deek deem dek- deka deke dem- dema demb demd deme dkba dkdc dmaa dmab dmac dmae dmba dmcc dmcm dmdc dmea eaba eaca eacc eada eadb eadd eaec eama eame ebac ebam ebba ebbc ebcc ebed ecaa ecac ecad ecam ecbc ecbe ecca eccb eccc ecce eccm ecdc eced ecem ecka ecma edac edad edam edca edda eddc edde eddm ede- edea edem edma edme eeca eede eeea eeee eeka eeke eka- ekab ekam ekeb eked ekek ekka ekma emac emad emae emam emba embd embe emcc emek emma emme kaaa kaab kaak kaam kaba kabb kabc kabd kabe kacb kacc kacd kace kad- kada kadd kade kadm kaka kakc kake kakk kakm kam- kama kamb kamc kame kamm kbaa kbab kbac kbad kbae kbak kbam kbba kbbb kbbc kbbd kbbe kbbk kbbm kbca kbcb kbce kbck kbdb kbde kbeb kbec kbed kbee kbek kbkb kbkk kbmb kbmc kbme kcaa kcab kcac kcad kcam kcba kcbc kcbd kcbk kcca kccb kccc kccd kcck kcda kcdc kcdd kcea kceb kcec kced kcee kckc kckk kckm kcmb kcmc kcmd kcme kcmk kcmm kdaa kdab kdac kdad kdae kdak kdam kdbb kdbm kdca kdcc kdcd kdce kddb kddc kddd kddk kdeb kdec kdem kdka kdkb kdkd kdkk kdma kdmc kdmd kea- kead keak keam keba kebb kebc kebe keca keck keda kedb kedc kedd kede kedm keed keek keem keka kekb kekc keke kema kemb kemc keme kemm kkaa kkac kkam kkba kkbb kkbd kkbe kkcb kkcd kkck kkcm kkda kkdc kkdd kkdm kkea kked kkkk kkma kkmc kkmk kmac kmad kmae kmak kmam kmbc kmbd kmca kmcb kmcc kmcd kmce kmcm kmdb kmea kmed kmem kmke kmkk kmme kmmk kmmm maaa maac maad maak maam maba mabe mac- maca macb macc macd mace mack mada madb madc madd made maee maem maka make mama