a-a a-b a-c aaa aab aac aaf aah aan aar ab- aba abb abc abf abh abn abr ac- aca acb acc acf ach acn acr af- afa afb afc aff afh afn afr aha ahb ahc ahf ahh ahn ahr an- ana anb anc anf anh ann anr ar- ara arb arc arf arh arn arr baa bab bac baf bah ban bar bba bbb bbc bbf bbh bbn bbr bca bcb bcc bcf bch bcn bcr bfa bfb bfc bff bfh bfn bfr bha bhb bhc bhf bhh bhr bna bnb bnc bnf bnn bnr bra brb brf brh brn brr c-- caa cab cac caf cah can car cba cbb cbc cbf cbh cbn cbr cca ccb ccc ccf cch ccn ccr cfa cfb cfc cff cfh cfn cfr ch- cha chb chc chf chh chn chr cn- cna cnb cnc cnf cnh cnn cnr cra crb crc crf crh crn crr faa fab fac faf fah fan far fba fbb fbc fbf fbh fbn fbr fca fcb fcc fcf fcn fcr ffa ffc fff ffh ffn ffr fha fhb fhc fhf fhh fhn fhr fna fnb fnc fnf fnh fnn fnr fra frb frc frf frh frn frr haa hab hac haf hah han har hba hbb hbc hbf hbh hbn hbr hca hcb hcc hcf hch hcn hcr hfa hfb hfc hff hfh hfn hfr hha hhb hhc hhf hhh hhn hhr hna hnb hnc hnf hnh hnn hr- hra hrb hrc hrf hrh hrn hrr naa nab nac naf nah nan nar nba nbb nbc nbf nbn nbr nca ncb ncc ncf nch ncn ncr nfa nfb nfc nff nfn nfr nha nhb nhc nhf nhh nhn nhr nna nnb nnc nnf nnh nnn nra nrb nrc nrf nrn nrr ra- raa rab rac raf rah ran rar rba rbb rbc rbf rbh rbn rbr rca rcb rcc rcf rch rcn rcr rfa rfb rfc rff rfh rfn rfr rh- rha rhb rhc rhf rhh rhn rhr rna rnb rnc rnh rnn rnr rra rrb rrc rrf rrh rrn rrr

-ana a-ha aaaa aaab aaac aaaf aaah aaan aaar aaba aabb aabc aabh aaca aacb aacc aacf aach aacn aacr aafa aafb aafc aaff aaha aana aara aarc abaa abab abac abaf aban abar abb- abba abbb abbr abca abcb abcc abcf abch abcn abcr abff abha abhr abra abrc acaa acab acac acan acar acba acca accc accf acch acfc acha achh achr acr- acra acrc acrr afaa afan afar afca afcb afcc afch affa affc afr- afra afrc ahab ahac ahah ahar ahfa ahha ahra ahrc ahrr ana- anaa anab anac anah anan anar anba anbb anca ancc anfa anha anna annb anrc arab arac araf arah aran arar arba arbh arc- arca arch arfa arfb arfc arff arh- arna arr- arra arrc arrh arrr baaa baaf baah baan baar baba babb babr bac- baca bacc bach bacn bafc baff baha bahn bahr bana banc banh bann banr bar- bara barb barc barf barh barn barr bbbb bbch bbfc bbfn bbrc bcaa bcar bcbc bcca bccc bcfc bcra bfca bhan bhar bhca bhcc bhff bhra bnrr brab brac braf brah bran brca brcb brfc brna brrr caaa caab caac caaf caah caan caba cabf cac- caca cacc cach cacr cafa cafb cafc caff caha cahn cana canc canh cann cara carb carc carf carn carr cbac cbar cbbc cbca cbcc cbcn cbcr cbfb cbfc cbha cbna cbrh cbrn ccaa ccab ccac ccaf ccar ccba ccbc ccbn ccca cccb cccc cccf ccfa ccfc ccff ccha cchr ccna ccnb ccnc ccnf ccnr ccra ccrc ccrf cfaa cfab cfac cfar cfbc cfbn cfbr cfca cfcb cfcf cfcn cffb cffr cfnb cfnr cfra cfrb cfrn chaa chab chac chaf chah chan char chca chch chfa chfc chfr chha chnb chnc chnr chra chrb chrc chrf chrn chrr cnaa cnac cnbc cnfa cnna cnrc cnrr crab crac craf cran crar crbc crca crcc crcr crfc crna faaa faac faah faan faba faca facc fach fafa fafc faff faha fahn fahr fana fanc fara farb farc farr fbar fcab fcar fcba fcca fccf fcch fcra ffar ffcc ffff ffrr fnac fnar frab frac fran frbc frcc frcn frfc haab haaf haan haar haba hafb haff haha hahn hana hanc hann hara harc harf harh harn harr hbar hbfc hcbc hcca hccb hccc hcch hcfa hcfc hfba hhaa hhhh hnna hrac hran hrfc hrrc naaa naab naac naan naar naba nabc nabf naca nacc nacf nach nafa nafc naff naha nahf nahr nan- nana nanb nann nara narc narf narh narn narr nbaa nbaf nbar nbbc nbca nbcc nbfa nbfc ncaa ncac ncar ncba ncbc ncca nccc nccf nccn nccr ncfc ncha nchc ncna ncnc ncra ncrc nfaa nfff nfra nhcc nhnn nhra nhrc nnnn nrab nrca nrfc nrna nrrc raab raaf raan raba rabb rac- raca racc rach rafa rafc raff raha rahn rahr rana ranc rann rara rarb rarf rbaf rbbb rbbr rcac rcaf rcbc rccb rccc rcfc rchb rcnr rffc rnaf rnbr rrah rrfc rrna rrrr

-aaa- aaaah aaarc aabaa aabba aabra aacbc aahaa aanch aarah aarch aarna abaab ababa abaca abana abanc abann abara abarn abbac abban abbar abcan abccc abfab abhar abrac abran abrar acaca acacb acana acar- acara accra achab achan achar achna acnff acrab afanc afara afnan afrah ahhaa ahhha ahrab ahran ahrar anaba anana anara anban anbar ancar ancha anhar annan annar anncr ar-ab ara-c arab- araba araca arach arana aranc arara arbab arbar arcan arch- archa archb arfcn arhar arnac arnah arnan arnar arrah arran arrha baarn baban babar babra bacab bacar bacca bacha bafan baffa bafna bafra bahan bahar bahna bahra banaf banan banar banba banca banch banfa banff banha banna baraa barab barac baran barar barba barca barff barha barna barra bhana bhara braca bracc brach braff brana branc brann brrar brrrr c-a-c c-raf c-ran ca-ca caaan caaba caban cabra cacha caffa cahan cahar cahch canan canar canch canna caraa carab carac carb- carna carra ccccc cfrna chaab