a-a a-b a-c a-t aaa aab aac aaj aak aao aat ab- aba abb abc abj abk abo abt ac- aca acb acc acj ack aco act aja ajb ajc ajj ajk ajo ajt aka akb akc akj akk ako aoa aob aoc aoj aok aoo aot at- ata atb atc ato att baa bab bac baj bak bao bat bba bbb bbc bbk bbo bbt bca bcb bcc bcj bck bco bct bja bjc bjj bjk bjt bka bkb bkc bkk bko bkt boa bob boc boj bok boo bot bta btb btc btk bto btt c-- c-j caa cab cac caj cak cao cat cba cbb cbc cbj cbk cbo cbt cca ccb ccc ccj cck cco cct cja cjb cjc cjk cka ckb ckc cko ckt co- coa cob coc coj cok coo cot cta ctb ctc ctk cto ctt jaa jab jac jaj jak jao jat jba jbc jbj jbk jbo jbt jca jcb jcc jck jco jct jja jjb jjc jjj jjk jka jkb jkk jko jkt joa job joc joj jok joo jot jta jtb jtc jtk jtt k-t ka- kaa kab kac kaj kak kao kat kba kbb kbc kbk kbo kca kcb kcc kck kct kjb kjc kkb kkc kkk kkt koa kob koc kok koo kot kta ktb ktc ktj ktk kto ktt oaa oab oac oaj oak oao oat ob- oba obb obc obj obk obo obt oc- oca ocb occ ocj ock oco oct oja ojb ojc ojo oka okb okc okj okk oko oo- ooa oob ooc ook ooo oot ot- ota otb otc otk oto ott taa tab tac taj tak tao tat tba tbb tbc tbj tbk tbo tbt tca tcb tcc tcj tck tco tct tjc tjo tka tkb tkc tkk tko tkt to- toa tob toc toj tok too tot tta ttb ttc ttk tto ttt

a-ak a-ok aaaa aaab aaac aaba aabb aabc aabt aaca aacb aacc aack aaco aact aaka aaoo aata aatc aatk aatt abaa abab abac abaj abak abat abb- abba abbb abbo abbt abca abcb abcc abct aboa abob abok aboo abot abta ac-t acaa acab acac acat acba acca accc acco acct acoa acot acta actc acto actt ajab ajac ajak ajao ajat ajba ajka ajob ajoo ajot akaa akao akca akka akko akok akot aoba aoca aotc at-t ataa atab atac atak atat atca atcc atck atco atka atkt atob atoc atok atot atta atto baaa baak baat baba babb babo bac- baca bacc back baco bact baja bak- baka bako bakt bata batc bato batt bbbb bcaa bcat bcbc bcca bccc bctc bjcc bjoa boab boac boak boat boba bobb bobo boca bock boco bojo bojt boka boko boob booc book boot bota botb boto bott btaa btcc btob bttb c-bo caaa caab caac caat caba cabo cac- caca cacc cack caco caja caka cat- cata catb catc cato catt cbac cbat cbbc cbca cbcc cbct cbka cbkj cbko cbot cbta cbtc ccaa ccab ccac ccat ccba ccbc ccca cccb cccc ccjo ccob ccoc cctb cctc cctt cjbc cjbk cjca cjcb cjcj cjob ckac ckat ckbc ckck ckco ckoa ckob ckoc ckoo ckot cktb coak coat coba cobb cobo coca cock coco coct cojo cok- coka coko coob cook coot cota cotb cotc coto cott ctab ctba ctca ctot ctta jaak jaba jabo jaca jacc jack jaco jaja jaka jako jato jbaa jbob jcbc jccc jjcc joab joao joba jobo joca jock joco jojo joka jokb jook joot jota joto jott jtac jtbc jtcc kaaa kaab kaak kaat kaba kabb kabc kabo kacb kacc kaco kact kaja kajb kajc kajk kajo kajt kaka kakc kakj kakk kako kakt kaoa kaoc kaok kat- kata katb katc katk kato katt kbaa kbab kbac kbak kbat kbba kbbb kbbc kbbk kbbo kbbt kbca kbcb kbck kbco kbct kbja kbjc kbjk kbjt kbkb kbkk kbko kboa kbob kboc kbok kboo kbot kbta kbtb kbtc kbtk kbto kbtt kcaa kcab kcac kcat kcba kcbc kcbk kcca kccb kccc kcck kcct kcjb kcjc kcjj kcjk kckc kckj kckk kcko kcob kcot kcta kctb kctc kctj kcto kjaa kjac kjak kjbb kjcb kjcc kjck kjct kjjj kjjk kjjo kjjt kjkj kjkk kjkt kjoc kjoj kjok kjot kjtt kkaa kkac kkat kkba kkbb kkbj kkbo kkbt kkcb kkcj kkck kkco kkct kkjb kkjk kkkj kkkk kkoa kkob kkoj kkoo kkot kktc kktk koab koac koak koba kobb kobc kobk kobo koca kocb kock koct koja kojb kojo koka kokb kokc kokk koko koob kooc kook kooo koot kota kotb kotc kotk koto kott ktaa ktak ktao ktat ktba ktbb ktbc ktbt ktcc ktck ktco ktjj ktkb ktkc ktkk ktko ktkt ktob ktoc ktok ktoo ktot kttc kttk ktto kttt obak obba obbo obja obkb obok obot ocab ocac ocak ocat ocbc occa occc occt oct- octa octo ojak ojok okak okja okka okko okok okot okta okto ooaa ooak ooba oooo ootb otac otak oto- otok otoo otta otto taa- taat taba tabb tabc tabo taca tacc tack taco tact tajo taka takk tako takt taoa tata tatb tato tatt tbca tbcb tbcc tbta tcca tccc tctc tkac toab toat toba tobo tobt toca tock toco toja tojo toka toko tooa took toot tota totc toto tott ttab ttbb tttt

-aaa- aaaoc aaata aabaa aabba aacbc aacjc aakko abaab ababa abaca aback abaco abaja abajo abaka abako abbac abbaj abbat abbot abccc abkoo abkot aboab aboat abobo abook aboot abott abtaa abtao acaca acacb acack acoat acock acook acoot actto ajack ajaja ajaka ajoba akaba akabo akaoa akata akbot akobo akoka akoko akota akoto atack ataco atajo ataka atbat atkot atoka atoot atoto attak atto- baaja baata babak babka baboo babot bacab bacao bacca bacco back- backa bacot bacta bajaj bajc bajka bajot bakaj bakka bakoa bakot batab batac batak batat batco batka batko batob batoo batta batto bbook bccat bcock bo-bo boaco bobac bobak bobko boboc bobok bocac bocaj bocao bocat bocca bocka bocoa bojka bokaa bokat bokko bokok booat booba boock booco