a-a a-b a-c aaa aab aac aad aag aah aan aar aau ab- aba abb abc abd abg abh abn abr abu ac- aca acb acc acd acg ach acn acr acu ad- ada adb adc add adg adh adn adr adu ag- aga agb agc agd agg agh agn agr agu aha ahb ahc ahd ahg ahh ahn ahr ahu an- ana anb anc and ang anh ann anr anu ar- ara arb arc ard arg arh arn arr aru au- aua aub auc aud aug auh aun aur b-u baa bab bac bad bag bah ban bar bau bba bbb bbc bbd bbg bbh bbn bbr bbu bca bcb bcc bcd bcg bch bcn bcr bcu bda bdb bdc bdd bdg bdh bdr bdu bga bgb bgc bgd bgg bgh bgn bgr bgu bha bhb bhc bhd bhg bhh bhr bhu bna bnb bnc bnd bng bnn bnr bnu bra brb brd brg brh brn brr bru bua bub buc bud bug buh bun bur buu c-- caa cab cac cad cag cah can car cau cba cbb cbc cbd cbg cbh cbn cbr cbu cca ccb ccc ccd ccg cch ccn ccr ccu cda cdb cdc cdd cdg cdh cdn cdr cdu cga cgb cgc cgd cgg cgh cgn cgr cgu ch- cha chb chc chd chg chh chn chr chu cn- cna cnb cnc cnd cng cnh cnn cnr cnu cra crb crc crd crg crh crn crr cru cua cub cuc cud cug cuh cun cur cuu daa dab dac dad dag dah dan dar dau dba dbb dbc dbd dbg dbh dbn dbr dbu dca dcb dcc dcd dcg dcn dcr dcu dda ddb ddc ddd ddg ddh ddn ddr ddu dga dgc dgd dgg dgh dgn dgr dgu dh- dha dhb dhc dhd dhh dhr dhu dna dnb dnc dnd dng dnh dnn dnr dra drb drc drd drg drn drr dru dua dub duc dud dug duh dun dur g-d gaa gab gac gad gag gah gan gar gau gba gbc gbd gbg gbh gbn gbr gbu gca gcb gcc gcd gcg gch gcn gcr gcu gda gdb gdc gdd gdh gdn gdr gdu gga ggb ggc ggd ggg ggh ggn ggr ggu gha ghb ghc ghd ghg ghh ghn ghr gna gnb gnc gnd gnn gnr gnu gra grb grc grd grg grh grn grr gru gu- gua gub guc gud gug gun gur guu haa hab hac had hag hah han har hau hba hbb hbc hbd hbg hbh hbn hbr hbu hca hcb hcc hcd hcg hch hcn hcr hda hdb hdc hdd hdg hdh hdn hdr hdu hga hgb hgc hgg hgh hgn hgr hgu hha hhb hhc hhd hhg hhh hhn hhr hhu hna hnb hnc hnd hng hnh hnn hnu hr- hra hrb hrc hrd hrg hrh hrn hrr hru hua hub huc hud hug huh hun hur huu naa nab nac nad nag nah nan nar nau nba nbb nbc nbd nbg nbn nbr nbu nca ncb ncc ncd ncg nch ncn ncr ncu nda ndb ndc ndd ndg ndh ndn ndr ndu nga ngb ngc ngd ngg ngh ngn ngu nha nhb nhc nhd nhg nhh nhn nhr nhu nna nnb nnc nng nnh nnn nnu nra nrb nrc nrd nrg nrn nrr nru nua nub nuc nud nug nuh nun nur nuu ra- raa rab rac rad rag rah ran rar rau rba rbb rbc rbd rbg rbh rbn rbr rbu rca rcb rcc rcd rcg rch rcn rcr rcu rda rdb rdc rdd rdg rdh rdn rdr rdu rga rgb rgc rgd rgg rgh rgn rgr rh- rha rhb rhc rhd rhg rhh rhn rhr rhu rna rnb rnc rnd rng rnh rnn rnr rnu rra rrb rrc rrd rrg rrh rrn rrr rru rua rub ruc rud rug ruh run rur ruu ua- uaa uab uac uad uag uah uan uar uau uba ubb ubc ubg ubh ubn ubr ubu uca ucb ucc ucd ucg uch ucn ucr ucu uda udb udc udd udg udn udr udu uga ugb ugc ugg ugh ugn ugr ugu uha uhb uhc uhd uhh uhr uhu un- una unb unc und ung unh unn unr unu ur- ura urb urc urd urg urn urr uru uua uuc uug 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 aagh aaha aana aand aang aara aarc aard aaru abaa abab abac abad abag aban abar abau abb- abba abbb abbr abca abcb abcc abcd abch abcn abcr abda abdu abgd abha abhr abnu abra abrc abua abud abug abun acaa acab acac acad acag acan acar acba acca accc accd acch accu acda acdb acdc acga acgr acha achh achr achu acr- acra acrc acrr acu- acur adaa adab adac adad adag adah adan adar adba adbc adcc adda addc addd addn addr addu adha adhd adhn adhu adna adra adua adub adun adur agac agad agag agan agar agau agba agca agcc agda agga aggu agha agna agra agua agun agur ahab ahac ahad ahah ahar ahau ahha ahra ahrc ahrr ahua ahug ahun ana- anaa anab anac anad anag anah anan anar anau anba anbb anbu anca ancc and- anda andh andr ang- anga angu anha anna annb anrc anua anub anun arab arac arad arag arah aran arar arau arba arbh arc- arca arch arda ardc ardu arga argb argh arh- arna arnd arng arr- arra arrc arrg arrh arrr arru arua arub arud arug arun auaa auca auch audc audh auga auna aung aur- aura aurd auug baaa baad baah baan baar baba babb babr babu bac- baca bacc bach bacn bada badb badd badh badr badu baga bagg bagh bagn baha bahn bahr bahu bana banc band bang banh bann banr banu bar- bara barb barc bard barg barh barn barr baru bau- baud baug baur bbad bbau bbbb bbch bbdd bbga