a-a a-b a-c aaa aab aac aad aah aan aar aau ab- aba abb abc abd abh abn abr abu ac- aca acb acc acd ach acn acr acu ad- ada adb adc add adh adn adr adu aha ahb ahc ahd ahh ahn ahr ahu an- ana anb anc and anh ann anr anu ar- ara arb arc ard arh arn arr aru au- aua aub auc aud auh aun aur b-u baa bab bac bad bah ban bar bau bba bbb bbc bbd bbh bbn bbr bbu bca bcb bcc bcd bch bcn bcr bcu bda bdb bdc bdd bdh bdr bdu bha bhb bhc bhd bhh bhr bhu bna bnb bnc bnd bnn bnr bnu bra brb brd brh brn brr bru bua bub buc bud buh bun bur buu c-- caa cab cac cad cah can car cau cba cbb cbc cbd cbh cbn cbr cbu cca ccb ccc ccd cch ccn ccr ccu cda cdb cdc cdd cdh cdn cdr cdu ch- cha chb chc chd chh chn chr chu cn- cna cnb cnc cnd cnh cnn cnr cnu cra crb crc crd crh crn crr cru cua cub cuc cud cuh cun cur cuu daa dab dac dad dah dan dar dau dba dbb dbc dbd dbh dbn dbr dbu dca dcb dcc dcd dcn dcr dcu dda ddb ddc ddd ddh ddn ddr ddu dh- dha dhb dhc dhd dhh dhr dhu dna dnb dnc dnd dnh dnn dnr dra drb drc drd drn drr dru dua dub duc dud duh dun dur haa hab hac had hah han har hau hba hbb hbc hbd hbh hbn hbr hbu hca hcb hcc hcd hch hcn hcr hda hdb hdc hdd hdh hdn hdr hdu hha hhb hhc hhd hhh hhn hhr hhu hna hnb hnc hnd hnh hnn hnu hr- hra hrb hrc hrd hrh hrn hrr hru hua hub huc hud huh hun hur huu naa nab nac nad nah nan nar nau nba nbb nbc nbd nbn nbr nbu nca ncb ncc ncd nch ncn ncr ncu nda ndb ndc ndd ndh ndn ndr ndu nha nhb nhc nhd nhh nhn nhr nhu nna nnb nnc nnh nnn nnu nra nrb nrc nrd nrn nrr nru nua nub nuc nud nuh nun nur nuu ra- raa rab rac rad rah ran rar rau rba rbb rbc rbd rbh rbn rbr rbu rca rcb rcc rcd rch rcn rcr rcu rda rdb rdc rdd rdh rdn rdr rdu rh- rha rhb rhc rhd rhh rhn rhr rhu rna rnb rnc rnd rnh rnn rnr rnu rra rrb rrc rrd rrh rrn rrr rru rua rub ruc rud ruh run rur ruu ua- uaa uab uac uad uah uan uar uau uba ubb ubc ubh ubn ubr ubu uca ucb ucc ucd uch ucn ucr ucu uda udb udc udd udn udr udu uha uhb uhc uhd uhh uhr uhu un- una unb unc und unh unn unr unu ur- ura urb urc urd urn urr uru uua uuc uun uur uuu

-ana a-ha a-un aaaa aaab aaac aaad aaah aaan aaar aaba aabb aabc aabd aabh aaca aacb aacc aacd aach aacn aacr aacu aada aadc aadu aaha aana aand aara aarc aard aaru abaa abab abac abad aban abar abau abb- abba abbb abbr abca abcb abcc abcd abch abcn abcr abda abdu abha abhr abnu abra abrc abua abud abun acaa acab acac acad acan acar acba acca accc accd acch accu acda acdb acdc acha achh achr achu acr- acra acrc acrr acu- acur adaa adab adac adad adah adan adar adba adbc adcc adda addc addd addn addr addu adha adhd adhn adhu adna adra adua adub adun adur ahab ahac ahad ahah ahar ahau ahha ahra ahrc ahrr ahua ahun ana- anaa anab anac anad anah anan anar anau anba anbb anbu anca ancc and- anda andh andr anha anna annb anrc anua anub anun arab arac arad arah aran arar arau arba arbh arc- arca arch arda ardc ardu arh- arna arnd arr- arra arrc arrh arrr arru arua arub arud arun auaa auca auch audc audh auna aur- aura aurd baaa baad baah baan baar baba babb babr babu bac- baca bacc bach bacn bada badb badd badh badr badu baha bahn bahr bahu bana banc band banh bann banr banu bar- bara barb barc bard barh barn barr baru bau- baud baur bbad bbau bbbb bbch bbdd bbrc bcaa bcar bcbc bcca bccc bcda bchd bcnu bcra bcru bcuc bd-r bdbc bddc bddh bdna bhan bhar bhca bhcc bhra bhur bhuu bnrr brab brac brad brah bran brau brca brcb brda brna brrr bruc brud bruh brun buad buar buba bubb bubu buca bucc buch bucu buda budb budd budu buha buhr buna bunb bund bunn bunu bur- bura burb burd burh burn burr buru c-cd caaa caab caac caah caan caba cabu cac- caca cacc cach cacr cada cadc cadd cadr cadu caha cahn cana canc cand canh cann cara carb carc card carn carr cauc cbac cbar cbbc cbca cbcc cbcn cbcr cbcu cbdb cbdc cbdn cbha cbna cbnd cbrd cbrh cbrn ccaa ccab ccac ccad ccar ccba ccbc ccbn ccca cccb cccc cccu ccdc ccdh ccdn ccdr ccha cchr ccna ccnb ccnc ccnr ccnu ccra ccrc ccuc cd-r cdaa cdac cdad cdba cdda cddb cddr cdna cdnb cdnc chaa chab chac chad chah chan char chau chca chch chha chnb chnc chnr chra chrb chrc chrd chrn chrr chua chub chud chun chur cnaa cnac cnbc cnda cndd cnna cnrc cnrr crab crac cran crar crau crbc crbu crca crcc crcr crda crdc crna crub crud crun cuan cuau cub- cuba cubb cuca cucc cucn cuda cuna cund cura curb curd curn curr d-na daab daad daan daar daau daba dabb dabu daca dada dadu daha dahn dahu dana dand dann danr danu dara darb darc dard darn darr daru daub daud daun daur dbar dbcc dbrn dcbc dcca dccb dccc