a-a a-b a-c a-t aaa aab aac aak aao aat aau ab- aba abb abc abk abo abt abu ac- aca acb acc ack aco act acu aka akb akc akk ako aku aoa aob aoc aok aoo aot aou at- ata atb atc ato att atu au- aua aub auc auk auo aut b-u baa bab bac bak bao bat bau bba bbb bbc bbk bbo bbt bbu bca bcb bcc bck bco bct bcu bka bkb bkc bkk bko bkt boa bob boc bok boo bot bou bta btb btc btk bto btt btu bua bub buc buk buo but buu c-- caa cab cac cak cao cat cau cba cbb cbc cbk cbo cbt cbu cca ccb ccc cck cco cct ccu cka ckb ckc cko ckt co- coa cob coc cok coo cot cou cta ctb ctc ctk cto ctt ctu cua cub cuc cuk cuo cut cuu k-t ka- kaa kab kac kak kao kat kau kba kbb kbc kbk kbo kbu kca kcb kcc kck kct kcu kkb kkc kkk kkt kku koa kob koc kok koo kot kou kta ktb ktc ktk kto ktt ktu kub kuc kuk kut kuu oaa oab oac oak oao oat oau ob- oba obb obc obk obo obt obu oc- oca ocb occ ock oco oct ocu oka okb okc okk oko oku oo- ooa oob ooc ook ooo oot ot- ota otb otc otk oto ott otu ou- oua ouc ouk ouo out taa tab tac tak tao tat tau tba tbb tbc tbk tbo tbt tbu tca tcb tcc tck tco tct tcu tka tkb tkc tkk tko tkt to- toa tob toc tok too tot tou tta ttb ttc ttk tto ttt ttu tua tub tuc tuk tuo tut tuu ua- uaa uab uac uak uao uat uau uba ubb ubc ubk ubo ubt ubu uca ucb ucc uck uco uct ucu uka ukb ukc ukk uku uoa uob uoc uok uoo uot uta utb utc utk uto utt utu uua uuc uut uuu

a-ak a-ok aaaa aaab aaac aaba aabb aabc aabt aaca aacb aacc aack aaco aact aacu aaka aaku aaoo aata aatc aatk aatt abaa abab abac abak abat abau abb- abba abbb abbo abbt abca abcb abcc abct aboa abob abok aboo abot abou abta abtu abua abuk abut ac-t acaa acab acac acat acba acca accc acco acct accu acoa acot acou acta actc acto actt actu acu- acuo acut akaa akao akca akka akko akku akok akot akua aoba aoca aotc aout at-t ataa atab atac atak atat atca atcc atck atco atka atkt atob atoc atok atot atta atto attu atua atub atuc atuk auaa auca auct aut- auto baaa baak baat baba babb babo babu bac- baca bacc back baco bact bak- baka bako bakt baku bata batc bato batt batu bau- bauk bbau bbbb bcaa bcat bcbc bcca bccc bctc bcuc boab boac boak boat boba bobb bobo bobu boca bock boco bocu boka boko boku boob booc book boot bota botb boto bott boua bouk bout btaa btcc btob bttb buat buba bubb bubo bubu buca bucc buck buco bucu buka bukk buko buku but- buta buto butt c-bo caaa caab caac caat caba cabo cabu cac- caca cacc cack caco caka cat- cata catb catc cato catt catu cauc cauk cauo caut cbac cbat cbbc cbca cbcc cbct cbcu cbka cbko cbot cbta cbtc ccaa ccab ccac ccat ccba ccbc ccca cccb cccc cccu ccob ccoc cctb cctc cctt ccuc ccut ckac ckat ckbc ckck ckco ckoa ckob ckoc ckoo ckot cktb coak coat coba cobb cobo cobu coca cock coco coct cocu cok- coka coko coob cook coot cota cotb cotc coto cott cotu coua coub couk cout ctab ctba ctca ctot ctta cuau cub- cuba cubb cuca cucc cuck cuk- cuka cut- cuta cutc cuto cutt kaaa kaab kaak kaat kaba kabb kabc kabo kabu kacb kacc kaco kact kacu kaka kakc kakk kako kakt kaku kaoa kaoc kaok kat- kata katb katc katk kato katt katu kau- kaub kauc kauk kauo kbaa kbab kbac kbak kbat kbba kbbb kbbc kbbk kbbo kbbt kbbu kbca kbcb kbck kbco kbct kbcu kbkb kbkk kbko kboa kbob kboc kbok kboo kbot kbta kbtb kbtc kbtk kbto kbtt kbua kbub kbuc kbuk kbut kbuu kcaa kcab kcac kcat kcau kcba kcbc kcbk kcbu kcca kccb kccc kcck kcct kccu kckc kckk kcko kcob kcot kcou kcta kctb kctc kcto kctu kcua kcub kcuk kkaa kkac kkat kkba kkbb kkbo kkbt kkcb kkck kkco kkct kkkk kkoa kkob kkoo kkot kktc kktk kktu kkua kkut kkuu koab koac koak koba kobb kobc kobk kobo kobu koca kocb kock koct koka kokb kokc kokk koko koku koob kooc kook kooo koot koou kota kotb kotc kotk koto kott kotu koua koub kout kouu ktaa ktak ktao ktat ktba ktbb ktbc ktbt ktbu ktcc ktck ktco ktkb ktkc ktkk ktko ktkt ktku ktob ktoc ktok ktoo ktot kttc kttk ktto kttt kttu ktub ktuc kuac kuat kuau kuba kubb kubc kubo kubu kuca kucb kucc kuco kuka kukk kuku kuoa kuok kuoo kuta kuto kutt kutu kuub kuuk kuuu oaau obak obba obbo obkb obok obot ocab ocac ocak ocat ocbc occa occc occt oct- octa octo okak okcu okka okko okok okot okta okto ooaa ooak ooba ooku oooo ootb otac otak oto- otok otoo otta otto ottu ouac ouat oucc out- outa outb outo ouu- taa- taat taba tabb tabc tabo tabu taca tacc tack taco tact taka takk tako takt taku taoa taou tata tatb tato tatt tatu taua taub tauc tauk taut tbca tbcb tbcc tbta tcca tccc tccu tctc tkac toab toat toau toba tobo tobt tobu toca tock toco toka toko toku tooa took toot tota totc toto tott touk tout ttab ttbb tttt tuak tuao tuat tuba tubb tubo tubu tuca tucc tuck tuco tuka tuko tuta tuto tutt tutu tuuo uabc uaca uaoc uata uatu uaua ubac ubba ubbo