a-a a-b a-c a-t aaa aab aac aak aan aao aat ab- aba abb abc abk abn abo abt ac- aca acb acc ack acn aco act aka akb akc akk akn ako an- ana anb anc ank ann ano ant aoa aob aoc aok aon aoo aot at- ata atb atc atn ato att baa bab bac bak ban bao bat bba bbb bbc bbk bbn bbo bbt bca bcb bcc bck bcn bco bct bka bkb bkc bkk bkn bko bkt bna bnb bnc bnk bnn bno bnt boa bob boc bok bon boo bot bta btb btc btk btn bto btt c-- caa cab cac cak can cao cat cba cbb cbc cbk cbn cbo cbt cca ccb ccc cck ccn cco cct cka ckb ckc cko ckt cn- cna cnb cnc cnn cno cnt co- coa cob coc cok con coo cot cta ctb ctc ctk ctn cto ctt k-t ka- kaa kab kac kak kan kao kat kba kbb kbc kbk kbn kbo kca kcb kcc kck kcn kct kkb kkc kkk kkn kkt kn- kna knc knk knn kno knt koa kob koc kok kon koo kot kta ktb ktc ktk ktn kto ktt naa nab nac nak nan nao nat nba nbb nbc nbk nbn nbo nbt nca ncb ncc nck ncn nco nct nka nkc nkk nkn nko nkt nna nnb nnc nnk nnn nno nnt no- noa nob noc nok non noo not nta ntb ntc ntk ntn nto ntt oaa oab oac oak oan oao oat ob- oba obb obc obk obn obo obt oc- oca ocb occ ock ocn oco oct oka okb okc okk oko on- ona onb onc onk onn ono ont oo- ooa oob ooc ook oon ooo oot ot- ota otb otc otk otn oto ott taa tab tac tak tan tao tat tba tbb tbc tbk tbn tbo tbt tca tcb tcc tck tcn tco tct tka tkb tkc tkk tko tkt tna tnb tnc tnk tnn tno tnt to- toa tob toc tok ton too tot tta ttb ttc ttk ttn tto ttt

-ana a-ak a-ok aaaa aaab aaac aaan aaba aabb aabc aabt aaca aacb aacc aack aacn aaco aact aaka aana aaon aaoo aata aatc aatk aatt abaa abab abac abak aban abat abb- abba abbb abbo abbt abca abcb abcc abcn abct aboa abob abok abon aboo abot abta ac-t acaa acab acac acan acat acba acca accc acco acct acoa acon acot acta actc acto actt akaa akan akao akca akka akko akna akok akon akot ana- anaa anab anac anak anan anao anat anba anbb anbo anca ancc anco anct ank- anka anko anna annb anno annt ano- anoa anon ant- anta anto antt aoba aoca aonb aono aont aotc at-t ataa atab atac atak atan atat atca atcc atck atco atka atkt atna atno atob atoc atok aton atot atta attn atto baaa baak baan baat baba babb babo bac- baca bacc back bacn baco bact bak- baka bako bakt bana banc bank bann bano bant baon bata batc batn bato batt bbbb bcaa bcat bcbc bcca bccc bctc bnoc bnta boab boac boak boan boat boba bobb bobo boca bock boco boka bokn boko bona bonc bonk bonn bono bont boob booc book boon boot bota botb botn boto bott btaa btan btcc btob bttb c-bo caaa caab caac caan caat caba cabo cac- caca cacc cack caco caka cana canc cank cann cano cant cat- cata catb catc cato catt cbac cbat cbbc cbca cbcc cbcn cbct cbka cbkn cbko cbna cbot cbta cbtc ccaa ccab ccac ccat ccba ccbc ccbn ccca cccb cccc ccna ccnb ccnc ccob ccoc cctb cctc cctt ckac ckan ckat ckbc ckck ckco cknb cknc cknt ckoa ckob ckoc ckoo ckot cktb cnaa cnac cnbc cnco cnna cnta cntc cntk coak coan coat coba cobb cobo coca cock coco coct cok- coka coko con- cona conc conk conn cono cont coob cook coon coot cota cotb cotc cotn coto cott ctab ctan ctba ctca ctot ctta cttn kaaa kaab kaak kaan kaat kaba kabb kabc kabo kacb kacc kaco kact kaka kakc kakk kakn kako kakt kana kanb kann kano kant kaoa kaoc kaok kaon kat- kata katb katc katk katn kato katt kbaa kbab kbac kbak kbat kbba kbbb kbbc kbbk kbbo kbbt kbca kbcb kbck kbco kbct kbkb kbkk kbko kbna kbnn kbno kboa kbob kboc kbok kbon kboo kbot kbta kbtb kbtc kbtk kbtn kbto kbtt kcaa kcab kcac kcat kcba kcbc kcbk kcca kccb kccc kcck kcct kckc kckk kckn kcko kcnb kcno kcnt kcob kcon kcot kcta kctb kctc kctn kcto kkaa kkac kkan kkat kkba kkbb kkbn kkbo kkbt kkcb kkck kkcn kkco kkct kkkk kknb kknn kkno kknt kkoa kkob kkon kkoo kkot kktc kktk knaa knab knac knan knat knba knbb knbc knbn knbt knca kncb knck kncn knco knct knkk knkt knnb knnk knob knoc knok knon knot kntk kntn knto koab koac koak koan koba kobb kobc kobk kobn kobo koca kocb kock kocn koct koka kokb kokc kokk kokn koko kona konc konk kono kont koob kooc kook koon kooo koot kota kotb kotc kotk kotn koto kott ktaa ktak ktan ktao ktat ktba ktbb ktbc ktbn ktbt ktcc ktck ktco ktkb ktkc ktkk ktkn ktko ktkt ktna ktnc ktnk ktnn ktno ktnt ktob ktoc ktok kton ktoo ktot kttc kttk kttn ktto kttt naaa naab naac naan naat naba nabc nabk nabo naca nacc nack naco naka nako nan- nana nanb nann nano nant naoc naot nata natc nato natt nbaa nbak nbbc nbbo nbca nbcc nbco ncaa ncac ncat ncba ncbc ncca nccc nccn ncct ncna ncnc ncoa ncoc ncta nctc nknt nkok nnnn nnot nntn noaa noac noak noat noba nobc nobo nock noco noct noko non- nona nonn nono nont noo- noob nook noon nooo noot not- nota noto nott ntbc ntcc ntto obak oban obba obbo obkb obok obon obot ocab ocac ocak ocan