a-a a-b a-c aaa aab aac aag aah aan aar aau ab- aba abb abc abg abh abn abr abu ac- aca acb acc acg ach acn acr acu ag- aga agb agc agg agh agn agr agu aha ahb ahc ahg ahh ahn ahr ahu an- ana anb anc ang anh ann anr anu ar- ara arb arc arg arh arn arr aru au- aua aub auc aug auh aun aur b-u baa bab bac bag bah ban bar bau bba bbb bbc bbg bbh bbn bbr bbu bca bcb bcc bcg bch bcn bcr bcu bga bgb bgc bgg bgh bgn bgr bgu bha bhb bhc bhg bhh bhr bhu bna bnb bnc bng bnn bnr bnu bra brb brg brh brn brr bru bua bub buc bug buh bun bur buu c-- caa cab cac cag cah can car cau cba cbb cbc cbg cbh cbn cbr cbu cca ccb ccc ccg cch ccn ccr ccu cga cgb cgc cgg cgh cgn cgr cgu ch- cha chb chc chg chh chn chr chu cn- cna cnb cnc cng cnh cnn cnr cnu cra crb crc crg crh crn crr cru cua cub cuc cug cuh cun cur cuu gaa gab gac gag gah gan gar gau gba gbc gbg gbh gbn gbr gbu gca gcb gcc gcg gch gcn gcr gcu gga ggb ggc ggg ggh ggn ggr ggu gha ghb ghc ghg ghh ghn ghr gna gnb gnc gnn gnr gnu gra grb grc grg grh grn grr gru gu- gua gub guc gug gun gur guu haa hab hac hag hah han har hau hba hbb hbc hbg hbh hbn hbr hbu hca hcb hcc hcg hch hcn hcr hga hgb hgc hgg hgh hgn hgr hgu hha hhb hhc hhg hhh hhn hhr hhu hna hnb hnc hng hnh hnn hnu hr- hra hrb hrc hrg hrh hrn hrr hru hua hub huc hug huh hun hur huu naa nab nac nag nah nan nar nau nba nbb nbc nbg nbn nbr nbu nca ncb ncc ncg nch ncn ncr ncu nga ngb ngc ngg ngh ngn ngu nha nhb nhc nhg nhh nhn nhr nhu nna nnb nnc nng nnh nnn nnu nra nrb nrc nrg nrn nrr nru nua nub nuc nug nuh nun nur nuu ra- raa rab rac rag rah ran rar rau rba rbb rbc rbg rbh rbn rbr rbu rca rcb rcc rcg rch rcn rcr rcu rga rgb rgc rgg rgh rgn rgr rh- rha rhb rhc rhg rhh rhn rhr rhu rna rnb rnc rng rnh rnn rnr rnu rra rrb rrc rrg rrh rrn rrr rru rua rub ruc rug ruh run rur ruu ua- uaa uab uac uag uah uan uar uau uba ubb ubc ubg ubh ubn ubr ubu uca ucb ucc ucg uch ucn ucr ucu uga ugb ugc ugg ugh ugn ugr ugu uha uhb uhc uhh uhr uhu un- una unb unc ung unh unn unr unu ur- ura urb urc urg urn urr uru uua uuc uug uun uur uuu

-ana a-ha a-un aaaa aaab aaac aaah aaan aaar aaba aabb aabc aabh aaca aacb aacc aach aacn aacr aacu aagh aaha aana aang aara aarc aaru abaa abab abac abag aban abar abau abb- abba abbb abbr abca abcb abcc abch abcn abcr abha abhr abnu abra abrc abua abug abun acaa acab acac acag acan acar acba acca accc acch accu acga acgr acha achh achr achu acr- acra acrc acrr acu- acur agac agag agan agar agau agba agca agcc agga aggu agha agna agra agua agun agur ahab ahac ahah ahar ahau ahha ahra ahrc ahrr ahua ahug ahun ana- anaa anab anac anag anah anan anar anau anba anbb anbu anca ancc ang- anga angu anha anna annb anrc anua anub anun arab arac arag arah aran arar arau arba arbh arc- arca arch arga argb argh arh- arna arng arr- arra arrc arrg arrh arrr arru arua arub arug arun auaa auca auch auga auna aung aur- aura auug baaa baah baan baar baba babb babr babu bac- baca bacc bach bacn baga bagg bagh bagn baha bahn bahr bahu bana banc bang banh bann banr banu bar- bara barb barc barg barh barn barr baru bau- baug baur bbau bbbb bbch bbga bbng bbrc bbrg bcaa bcar bcbc bcbg bcca bccc bcnu bcra bcru bcuc bgan bgca bgun bhag bhan bhar bhca bhcc bhra bhur bhuu bnrr brab brac brag brah bran brau brca brcb brna brrr bruc brug bruh brun buar buba bubb bubu buca bucc buch bucu buga bugg bugh buha buhr buna bunb bung bunn bunu bur- bura burb burg burh burn burr buru caaa caab caac caah caan caba cabg cabu cac- caca cacc cach cacr caga cagg cagn cagr caha cahn cana canc cang canh cann cara carb carc carn carr cauc cbac cbar cbbc cbca cbcc cbcn cbcr cbcu cbga cbgb cbha cbna cbrh cbrn ccaa ccab ccac ccag ccar ccba ccbc ccbn ccca cccb cccc cccu ccga ccgc ccha cchr ccna ccnb ccnc ccnr ccnu ccra ccrc ccrg ccuc cgac cgcc cgcg chaa chab chac chag chah chan char chau chca chch chgb chgn chha chnb chnc chnr chra chrb chrc chrn chrr chua chub chug chun chur cnaa cnac cnag cnbc cnna cnrc cnrr crab crac crag cran crar crau crbc crbu crca crcc crcr crna crub crug crun cuan cuau cub- cuba cubb cuca cucc cucn cuga cuna cura curb curn curr gaar gaba gabb gabr gabu gach gaga gagg gagu gaha gahn gana ganc gang gann ganu gara garb garg garn garr gaua gaub gaun gaur gbag gban gc-c gcaa gcbc gccc gcna gcrg gggg gghg ggrn ghan ghar ghug gnaa gnac gnar gnau gncc gngc gnrc gnrr grab grac gran grau grbr grcc grrr grua grub grug grun grur guaa guac guag guan guar guba gubb gubu guca guch guga gugb gugg gugh gugu guha guhr guna gung gunn gura gurb