a-a a-b a-c aaa aab aac aad aaf aah aao ab- aba abb abc abd abf abh abo ac- aca acb acc acd acf ach aco ad- ada adb adc add adf adh ado af- afa afb afc afd aff afh afo aha ahb ahc ahd ahf ahh aho aoa aob aoc aod aof aoh aoo baa bab bac bad baf bah bao bba bbb bbc bbd bbf bbh bbo bca bcb bcc bcd bcf bch bco bda bdb bdc bdd bdf bdh bdo bfa bfb bfc bfd bff bfh bfo bha bhb bhc bhd bhf bhh bho boa bob boc bod bof boh boo c-- caa cab cac cad caf cah cao cba cbb cbc cbd cbf cbh cbo cca ccb ccc ccd ccf cch cco cda cdb cdc cdd cdf cdh cdo cfa cfb cfc cfd cff cfh cfo ch- cha chb chc chd chf chh cho co- coa cob coc cod cof coh coo daa dab dac dad daf dah dao dba dbb dbc dbd dbf dbh dbo dca dcb dcc dcd dcf dco dda ddb ddc ddd ddf ddh ddo dfa dfb dfc dfd dff dfh dfo dh- dha dhb dhc dhd dhf dhh dho doa dob doc dod dof doh doo faa fab fac fad faf fah fao fba fbb fbc fbd fbf fbh fbo fca fcb fcc fcd fcf fco fda fdb fdc fdd fdf fdh fdo ffa ffc ffd fff ffh ffo fha fhb fhc fhf fhh fho foa fob foc fof foh foo haa hab hac had haf hah hao hba hbb hbc hbd hbf hbh hbo hca hcb hcc hcd hcf hch hco hda hdb hdc hdd hdf hdh hdo hfa hfb hfc hfd hff hfh hfo hha hhb hhc hhd hhf hhh hho hoa hob hoc hod hof hoh hoo oaa oab oac oad oaf oah oao ob- oba obb obc obd obf obh obo oc- oca ocb occ ocd ocf och oco oda odb odc odd odf odh odo of- ofa ofb ofc ofd off ofo oha ohc ohd ohf ohh oho oo- ooa oob ooc ood oof ooh ooo

a-do a-ha aaaa aaab aaac aaad aaaf aaah aaba aabb aabc aabd aabh aaca aacb aacc aacd aacf aach aaco aada aadc aafa aafb aafc aafd aaff aaha aaoo abaa abab abac abad abaf abb- abba abbb abbo abca abcb abcc abcd abcf abch abda abdo abff abha abho aboa abob abod abof aboh aboo acaa acab acac acad acba acca accc accd accf acch acco acda acdb acdc acdf acfc acfd acha achh acho acoa acod acoh adaa adab adac adad adah adao adba adbc adcc adda addc addd addo adfa adfc adha adhd adho adob adoc adod adoo afaa afad afao afca afcb afcc afch afdb afdc affa affc affo afoa afoo ahab ahac ahad ahah ahfa ahha ahoa ahod aoah aoba aoca aodh baaa baad baaf baah baba babb babo bac- baca bacc bach baco bada badb badd badh bado bafc baff bafo baha baho baoh bbad bbbb bbch bbdd bbdo bbfc bcaa bcbc bcca bccc bcda bcfc bchd bcof bdbc bddc bddh bfca bhao bhca bhcc bhff boab boac boad boba bobb bobo boca boch boco boda bodb bodh bodo bofa bofd boff bofh boha bohd boho boob booc bood boof booh c-bo c-cd caaa caab caac caaf caah caba cabf cabo cac- caca cacc cach caco cada cadc cadd cado cafa cafb cafc caff caha caod cbac cbbc cbca cbcc cbdb cbdc cbdo cbfb cbfc cbha ccaa ccab ccac ccad ccaf ccba ccbc ccca cccb cccc cccf ccdc ccdf ccdh ccfa ccfc ccfd ccff ccha ccob ccoc ccod cdaa cdac cdad cdba cdbf cdda cddb cdfa cfaa cfab cfac cfao cfbc cfca cfcb cfcf cfco cfda cffb cfoa chaa chab chac chad chaf chah chao chca chch chfa chfc chha choc chod choh choo coad coba cobb cobh cobo coca coch coco coda codd cofc coff coha coho coob cood coof cooh d-bo daab daad daba dabb dabo daca dada dado dafa dafc daff dafo daha dbcc dbfc dbfo dcbc dcca dccb dccc dcdb dcfc dddd ddoc dfaf dfcc dfco dffa dhaa dhad dhao dhfc dhod doab doba dobb doca doch doco dod- doda dodd dodo doff doha dohc doob dood doof faaa faac faad faah faba fabd fabo faca facc fach fada fadd fado fafa fafc faff fafo faha fahd fcab fcba fcca fccf fcch fcda fdca fdoa fdoc ffcc ffff foad foaf foba foca foch foco foda fofo food foof haab haad haaf haba habo haco hada hadf hadh hafb hafd haff haha haho hbcd hbfc hboc hcbc hcca hccb hccc hcch hcfa hcfc hdca hdda hdfc hdoc hdod hfba hhaa hhhh hhof hoac hoad hoba hobo hoca hoch hoda hodh hoff hoha hoho hood hoof oafc oafo obad obba obbo ocab ocac ocad ocbc occa occc ocfa ocha odac odah odbo odda oddd odoh odoo ofah off- offa offc offh offo ohad ohba ohcc ohho ohob ohoh ooaa ooba ooda ooff ooha ooho oooh oooo

-aaa- -abad aaaah aaadc aaaoc aabaa aabba aacbc aacfo aadac aahaa abaab ababa abaca abaco abada abbac abbad abbod abccc abcdb abcdf abcho abfab aboab aboad abobo abodh aboha abood acaca acacb accad accho achab achao achoo acoda adaba adada adado addah addha adhhd adhoc adobo adodb ahafo ahhaa ahhha ahoah babdo baboo bacab bacao bacca bacco bacha badao badco baddo badha badoc badod badoo baffa bahad bahco baobh bhada bhado bhoda bhood bo-bo bo-ho boaco boada bobac boboc bocac bocao bocca bocha bocho bocoa bodd- bodoc boffa boffo booba booch booco boodh c-a-c ca-ca caaba cabob caboc cabod cacao cacha caco- cacoa cadac caddo cadoc caffa caffo cafod cahch caoba ccccc cfhof chaab chaac chaah chaba chaca chach chaco chada chadd chafa chaff chhab choad choba choca choco choda chofa choff choof co-bo co-co coach coadd cocao cocc- cocco cocha cocoa codco codo coffa cohab cohob cohoo cooba cooch d-a-d daada dabba dabco daboh dacca dacco dacha daco- dadah dadao dadda daddo dadha dadoo dafca