-th a-a a-b a-c a-t aaa aab aac aah aak aao aat ab- aba abb abc abh abk abo abt ac- aca acb acc ach ack aco act aha ahb ahc ahh ahk aho aht aka akb akc akh akk ako aoa aob aoc aoh aok aoo aot at- ata atb atc ath ato att baa bab bac bah bak bao bat bba bbb bbc bbh bbk bbo bbt bca bcb bcc bch bck bco bct bha bhb bhc bhh bhk bho bht bka bkb bkc bkk bko bkt boa bob boc boh bok boo bot bta btb btc bth btk bto btt c-- caa cab cac cah cak cao cat cba cbb cbc cbh cbk cbo cbt cca ccb ccc cch cck cco cct ch- cha chb chc chh chk cho cht cka ckb ckc ckh cko ckt co- coa cob coc coh cok coo cot cta ctb ctc cth ctk cto ctt haa hab hac hah hak hao hat hba hbb hbc hbh hbk hbo hbt hca hcb hcc hch hck hco hct hha hhb hhc hhh hhk hho hht hka hkb hkh hkk hko hkt hoa hob hoc hoh hok hoo hot hta htb htc hth htk hto htt k-t ka- kaa kab kac kah kak kao kat kba kbb kbc kbh kbk kbo kca kcb kcc kch kck kct kha khh khk kho kkb kkc kkh kkk kkt koa kob koc koh kok koo kot kta ktb ktc kth ktk kto ktt oaa oab oac oah oak oao oat ob- oba obb obc obh obk obo obt oc- oca ocb occ och ock oco oct oha ohc ohh oho oht oka okb okc okk oko oo- ooa oob ooc ooh ook ooo oot ot- ota otb otc oth otk oto ott taa tab tac tah tak tao tat tba tbb tbc tbh tbk tbo tbt tca tcb tcc tch tck tco tct th- tha thb thc thh thk tho tht tka tkb tkc tkk tko tkt to- toa tob toc toh tok too tot tta ttb ttc tth ttk tto ttt

a-ak a-ha a-ok aaaa aaab aaac aaah aaba aabb aabc aabh aabt aaca aacb aacc aach aack aaco aact aaha aahk aaka aaoo aata aatc aatk aatt abaa abab abac abak abat abb- abba abbb abbo abbt abca abcb abcc abch abct abha abho aboa abob aboh abok aboo abot abta ac-t acaa acab acac acat acba acca accc acch acco acct acha achh acho acht acoa acoh acot acta actc acth acto actt ahab ahac ahah ahat ahha ahoa ahok ahot ahta ahto akaa akah akao akca akha akka akko akok akot aoah aoba aoca aotc at-t ataa atab atac atak atat atca atcc atch atck atco atha atho atka atkt atob atoc atok atot atta atto baaa baah baak baat baba babb babo bac- baca bacc bach back baco bact baha baho baht bak- baka bakh bako bakt baoh bata batc bath bato batt bbbb bbch bcaa bcat bcbc bcca bccc bctc bhao bhat bhca bhcc bhot boab boac boak boat boba bobb bobo boca boch bock boco boha boho boht boka boko boob booc booh book boot bota botb both boto bott btaa btcc btob bttb c-bo caaa caab caac caah caat caba cabo cac- caca cacc cach cack caco caha caht caka cat- cata catb catc cath cato catt cbac cbat cbbc cbca cbcc cbct cbha cbka cbko cbot cbta cbtc ccaa ccab ccac ccat ccba ccbc ccca cccb cccc ccha ccob ccoc cctb cctc cctt chaa chab chac chah chak chao chat chca chch chha chka chkb chkt choc choh chok choo chto chtt ckac ckat ckbc ckch ckck ckco ckoa ckob ckoc ckoo ckot cktb coak coat coba cobb cobh cobo coca coch cock coco coct coha coho cok- coka coko coob cooh cook coot cota cotb cotc coth coto cott ctab ctba ctca ctot ctta haab haak haat haba habo habt hack haco haha haho haht haka hakk hako hata hatb hath hato hatt hboc hcat hcbc hcca hccb hccc hcch hhaa hhat hhhh hkcc hoac hoat hoba hobo hoca hoch hock hoha hoho hoka hoko hook hoot hota hotb hoth hoto hott htab htcc htoh kaaa kaab kaak kaat kaba kabb kabc kabo kacb kacc kach kaco kact kaha kahc kaho kaht kaka kakc kakh kakk kako kakt kaoa kaoc kaok kat- kata katb katc kath katk kato katt kbaa kbab kbac kbak kbat kbba kbbb kbbc kbbk kbbo kbbt kbca kbcb kbch kbck kbco kbct kbhb kbhc kbhh kbht kbkb kbkk kbko kboa kbob kboc kbok kboo kbot kbta kbtb kbtc kbtk kbto kbtt kcaa kcab kcac kcah kcat kcba kcbc kcbk kcca kccb kccc kcck kcct kcha kchh kchk kcho kckc kckk kcko kcob kcoh kcot kcta kctb kctc kcto khab khac khak khao khat khbc khbt khca khcb khcc khch khck khct khhk khho khka khkk khoa khob khoc khok khot khtb khth khtk khto khtt kkaa kkac kkat kkba kkbb kkbo kkbt kkcb kkch kkck kkco kkct kkha kkhb kkhh kkhk kkkk kkoa kkob kkoh kkoo kkot kktc kktk koab koac koak koba kobb kobc kobk kobo koca kocb koch kock koct koha kohh koho koht koka kokb kokc kokh kokk koko koob kooc kook kooo koot kota kotb kotc koth kotk koto kott ktaa ktak ktao ktat ktba ktbb ktbc ktbt ktcc ktch ktck ktco kthc kthh kthk ktho ktht ktkb ktkc ktkk ktko ktkt ktob ktoc ktoh ktok ktoo ktot kttc ktth kttk ktto kttt oath obak obba obbo obkb obok obot ocab ocac ocak ocat ocbc occa occc occt ocha ocht oct- octa octo ohba ohcc ohho ohob ohoh ohok ohta ohto okak okha okka okko okok okot okta okto ooaa ooak ooba ooha ooho oooh oooo ootb otac otak otha otho oto- otoh otok otoo otta otto taa- taat taba tabb tabc tabo taca tacc tach tack taco tact taha taho taka takk tako takt taoa tata tatb tath tato tatt tbca tbcb tbcc tbta tcca tccc tch- tcha