a-a a-b a-c aaa aab aac aad aae aag aah aak ab- aba abb abc abd abe abg abh abk ac- aca acb acc acd ace acg ach ack ad- ada adb adc add ade adg adh adk aea aeb aec aed aee aeg aeh aek ag- aga agb agc agd age agg agh agk aha ahb ahc ahd ahe ahg ahh ahk aka akb akc akd ake akg akh akk baa bab bac bad bae bag bah bak bba bbb bbc bbd bbe bbg bbh bbk bca bcb bcc bcd bce bcg bch bck bda bdb bdc bdd bde bdg bdh bdk be- bea beb bec bed bee beg beh bek bga bgb bgc bgd bge bgg bgh bgk bha bhb bhc bhd bhe bhg bhh bhk bka bkb bkc bke bkg bkk c-- caa cab cac cad cae cag cah cak cba cbb cbc cbd cbe cbg cbh cbk cca ccb ccc ccd cce ccg cch cck cda cdb cdc cdd cde cdg cdh cdk ce- cea ceb cec ced cee ceg ceh cek cga cgb cgc cgd cge cgg cgh ch- cha chb chc chd che chg chh chk cka ckb ckc ckd ckh daa dab dac dad dae dag dah dak dba dbb dbc dbd dbe dbg dbh dbk dca dcb dcc dcd dce dcg dck dda ddb ddc ddd dde ddg ddh ddk de- dea deb dec ded dee deg deh dek dga dgc dgd dge dgg dgh dgk dh- dha dhb dhc dhd dhe dhh dhk dka dkb dkc dke dkg dkk eaa eab eac ead eae eag eah eak eba ebb ebc ebd ebe ebg ebh ebk ec- eca ecb ecc ecd ece ecg ech eck ed- eda edb edc edd ede edg edh edk eea eeb eec eed eee eeg eek ega egb egc egd ege egg egh eha ehb ehc ehd ehe ehg ehh eka ekb ekc ekd eke ekg ekh g-d gaa gab gac gad gae gag gah gak gba gbc gbd gbe gbg gbh gbk gca gcb gcc gcd gce gcg gch gck gda gdb gdc gdd gde gdh gdk ge- gea geb gec ged gee geg geh gek gga ggb ggc ggd ggg ggh gha ghb ghc ghd ghe ghg ghh gka gkb gkd gkh haa hab hac had hae hag hah hak hba hbb hbc hbd hbe hbg hbh hbk hca hcb hcc hcd hce hcg hch hck hda hdb hdc hdd hde hdg hdh hdk he- hea heb hec hed hee heg heh hek hga hgb hgc hge hgg hgh hgk hha hhb hhc hhd hhe hhg hhh hhk hka hkb hkd hkg hkh hkk ka- kaa kab kac kad kae kag kah kak kba kbb kbc kbd kbe kbh kbk kca kcb kcc kcd kce kcg kch kck kda kdb kdc kde kdg kdh kdk ke- kea keb kec ked kee keg keh kek kga kgb kgc kgd kgh kha khe khh khk kkb kkc kke kkh kkk

a-ak a-be a-ha aaaa aaab aaac aaad aaae aaah aaba aabb aabc aabd aabh aaca aacb aacc aacd aace aach aack aada aadc aade aaea aaec aage aagh aaha aahk aaka aake abaa abab abac abad abae abag abak abb- abba abbb abbe abca abcb abcc abcd abch abda abec abed abee abgd abha acaa acab acac acad acae acag acba acca accc accd acce acch acda acdb acdc acde ace- acea acec aced aceh acek acga acha ache achh ackd acke adaa adab adac adad adae adag adah adak adba adbc adcc adda addc addd adde adea adeb adee adeh adha adhd aeac aecb aede aega aeka agac agad agag agba agca agcc agce agda agde agea aged agee agga agge agha aghe ahab ahac ahad ahah ahed ahha akaa akae akah akca aked akee akeg akha akka baaa baad baah baak baba babb babe bac- baca bacc bace bach back bada badb badd bade badh baed baek baga bage bagg bagh baha bak- baka bake bakh bbad bbbb bbch bbdd bbeb bbga bcaa bcbc bcbg bcca bccc bcda bcde bcec bchd bche bdbc bddc bddh bead beag beah beak beba bebb bebe beca bech beck beda bede beeb beed beeg beek bega begg beka beke bgca bhag bhca bhcc bkgd c-cd caaa caab caac caah caba cabe cabg cac- caca cacc cace cach cack cada cadc cadd cade caec caga cage cagg caha cahe caka cake cbac cbbc cbca cbcc cbce cbdb cbdc cbea cbec cbee cbga cbgb cbha cbka cbkg ccaa ccab ccac ccad ccag ccba ccbc ccca cccb cccc ccdc ccdh cced ccee ccga ccgc ccha cche cd-e cdaa cdac cdad cdba cdda cddb cdec ceac cead ceba cec- ceca cece ceda cedd cede ceeb ceec cege ceke cgac cgcc cgcg cged chaa chab chac chad chae chag chah chak chca chce chch chea cheb chec ched chee cheh chek chgb chgd chge chha chka chkb ckac ckbc ckbe ckch ckck ckga daab daad daae daag daba dabb daca dace dada dade daeb daga dage dagg dagh daha dahe daka dake dbag dbcc dcbc dcca dccb dccc dcdb dche dddd deac dead deae deak deba debe dec- deca decc decd dece deck deda dedd dede deeb deed deeg deek dega dege degh deha dek- deka deke dekh dgac dgca dgeg dgge dghe dgka dgkb dgkd dgkg dhaa dhad dhag dhak dhec dhed dhee dkba dkdc eaba eabh eaca eacc each eada eadb eadd eaec eaga eage ebac ebba ebbc ebcc ebed ecaa ecac ecad ecbc ecbe ecca eccb eccc ecce ecdc eced echa eche ecka edac edad edag edah edca edda eddc edde ede- edea edeh edge eeca eede eeea eeee eega eeka eeke egaa egad egae egba egbe egcc egcg egea egec egee eggb egge eggh eghd eghe eghh ehaa ehcc ehdd ehea eheh eka- ekab ekch ekeb eked ekek ekka gaba gabb gabe gace gach gack gada gadd gade gadk gaea gaec gaed gaga gage gagg gaha gahe gbag gbde gc-c gcaa gcbc gccc gcda gdca gddb geab gead geba gebe