a-a a-b a-c aaa aab aac aaf aak aan aar aau ab- aba abb abc abf abk abn abr abu ac- aca acb acc acf ack acn acr acu af- afa afb afc aff afk afn afr afu aka akb akc akk akn akr aku an- ana anb anc anf ank ann anr anu ar- ara arb arc arf ark arn arr aru au- aua aub auc auf auk aun aur b-u baa bab bac baf bak ban bar bau bba bbb bbc bbf bbk bbn bbr bbu bca bcb bcc bcf bck bcn bcr bcu bfa bfb bfc bff bfn bfr bfu bka bkb bkc bkf bkk bkn bkr bna bnb bnc bnf bnk bnn bnr bnu bra brb brf brk brn brr bru bua bub buc buf buk bun bur buu c-- caa cab cac caf cak can car cau cba cbb cbc cbf cbk cbn cbr cbu cca ccb ccc ccf cck ccn ccr ccu cfa cfb cfc cff cfk cfn cfr cfu cka ckb ckc cn- cna cnb cnc cnf cnn cnr cnu cra crb crc crf crk crn crr cru cua cub cuc cuf cuk cun cur cuu faa fab fac faf fak fan far fau fba fbb fbc fbf fbk fbn fbr fbu fca fcb fcc fcf fck fcn fcr fcu ffa ffc fff ffk ffn ffr ffu fka fkb fkc fkf fkk fna fnb fnc fnf fnk fnn fnr fnu fra frb frc frf frk frn frr fru fua fub fuf fuk fun fur fuu ka- kaa kab kac kaf kak kan kar kau kba kbb kbc kbf kbk kbn kbr kbu kca kcb kcc kck kcn kcr kcu kfa kfc kff kfu kkb kkc kkk kkn kkr kku kn- kna knc knf knk knn knr knu kra krc krf krk krn krr kru kub kuc kuk kun kur kuu naa nab nac naf nak nan nar nau nba nbb nbc nbf nbk nbn nbr nbu nca ncb ncc ncf nck ncn ncr ncu nfa nfb nfc nff nfk nfn nfr nfu nka nkc nkf nkk nkn nkr nku nna nnb nnc nnf nnk nnn nnu nra nrb nrc nrf nrk nrn nrr nru nua nub nuc nuk nun nur nuu ra- raa rab rac raf rak ran rar rau rba rbb rbc rbf rbk rbn rbr rbu rca rcb rcc rcf rcn rcr rcu rfa rfb rfc rff rfk rfn rfr rfu rkb rkc rkf rkk rku rna rnb rnc rnn rnr rnu rra rrb rrc rrf rrk rrn rrr rru rua rub ruc ruf ruk run rur ruu ua- uaa uab uac uaf uak uan uar uau uba ubb ubc ubf ubk ubn ubr ubu uca ucb ucc ucf uck ucn ucr ucu ufa ufc uff ufn ufr ufu uka ukb ukc ukf ukk ukn ukr uku un- una unb unc unf unk unn unr unu ur- ura urb urc urf urk urn urr uru uua uuc uun uur uuu

-ana a-ak a-fu a-un aaaa aaab aaac aaaf aaan aaar aaba aabb aabc aaca aacb aacc aacf aack aacn aacr aacu aafa aafb aafc aaff aaka aaku aana aara aarc aaru abaa abab abac abaf abak aban abar abau abb- abba abbb abbr abca abcb abcc abcf abcn abcr abff abnu abra abrc abua abuf abuk abun acaa acab acac acan acar acba acca accc accf accu acfc acr- acra acrc acrr acu- acuf acur afaa afak afan afar afca afcb afcc afcu affa affc afka afkr afr- afra afrc afru afua akaa akan akar akca akka akku akna akr- akra akua ana- anaa anab anac anak anan anar anau anba anbb anbu anca ancc anfa ank- anka anku anna annb anrc anua anub anuf anun arab arac araf arak aran arar arau arba arc- arca arfa arfb arfc arff arfu arka arna arnk arr- arra arrc arrk arrr arru arua arub arun auaa auca aufc auna aunk aur- aura baaa baaf baak baan baar baba babb babr babu bac- baca bacc back bacn bafc baff bak- baka bakr baku bana banc bank bann banr banu bar- bara barb barc barf bark barn barr baru bau- bauf bauk baur bbau bbbb bbfc bbfn bbrc bcaa bcar bcbc bcca bccc bcfc bcnu bcra bcru bcuc bfca bnrr brab brac braf brak bran brau brca brcb brfc brfu brka brkb brna brrr bruc brun buar buba bubb bubu buca bucc buck bucu bufc buff bufr buka bukk buku buna bunb bunk bunn bunu bur- bura burb burk burn burr buru caaa caab caac caaf caan caba cabf cabu cac- caca cacc cack cacr cafa cafb cafc caff cafu caka cana canc cank cann cara carb carc carf cark carn carr cauc cauf cauk cbac cbar cbbc cbca cbcc cbcn cbcr cbcu cbfb cbfc cbka cbkn cbkr cbna cbrn ccaa ccab ccac ccaf ccar ccba ccbc ccbn ccca cccb cccc cccf cccu ccfa ccfc ccff ccna ccnb ccnc ccnf ccnr ccnu ccra ccrc ccrf ccuc cfaa cfab cfac cfar cfbc cfbn cfbr cfca cfcb cfcf cfcn cffb cffr cfnb cfnr cfra cfrb cfrn cfun ckac ckan ckbc ckck ckfr cknb cknc ckrc cnaa cnac cnbc cnfa cnna cnrc cnrr crab crac craf cran crar crau crbc crbu crca crcc crcr crfc crkc crna crub cruk crun cuan cuau cub- cuba cubb cuca cucc cuck cucn cufa cufc cuff cuk- cuka cuna cura curb curf curn curr f--k faaa faac faan faba fabu faca facc fack fafa fafc faff faku fana fanc fank fanu fara farb farc fark farr faru faun faur fbar fcab fcar fcba fcca fccf fcra fcuk ffar ffcc ffff ffrr ffun fkab fnac fnar fnuf frab frac frak fran frau frbc frcc frcn frfc frub frun fuar fubb fubu fuc- fuca fuck fufc fuff fufu fuka fukk fuku funa funf funk fur- fura furn furr kaaa kaab kaaf kaak kaan kaar kaba kabb kabc kabf kabr kabu kacb kacc kacu kafa kafc kaff kafn kafr kafu kaka kakc kakk kakn kaku kana kanb kanf kann kanu kara karb karf kark karn