a-a a-b a-c a-t aaa aab aac aaj aak aao aas aat ab- aba abb abc abj abk abo abs abt ac- aca acb acc acj ack aco acs act aja ajb ajc ajj ajk ajo ajs ajt aka akb akc akj akk ako aks aoa aob aoc aoj aok aoo aos aot as- asa asb asc asj ask aso ass ast at- ata atb atc ato ats att baa bab bac baj bak bao bas bat bba bbb bbc bbk bbo bbs bbt bca bcb bcc bcj bck bco bcs bct bja bjc bjj bjk bjs bjt bka bkb bkc bkk bko bks bkt boa bob boc boj bok boo bos bot bsa bsb bsc bsj bsk bso bss bst bta btb btc btk bto bts btt c-- c-j caa cab cac caj cak cao cas cat cba cbb cbc cbj cbk cbo cbs cbt cca ccb ccc ccj cck cco ccs cct cja cjb cjc cjk cjs cka ckb ckc cko cks ckt co- coa cob coc coj cok coo cos cot csa csb csc csj csk cso css cst cta ctb ctc ctk cto cts ctt jaa jab jac jaj jak jao jas jat jba jbc jbj jbk jbo jbs jbt jca jcb jcc jck jco jcs jct jja jjb jjc jjj jjk jjs jka jkb jkk jko jks jkt joa job joc joj jok joo jos jot jsa jsb jsc jsj jsk jso jss jst jta jtb jtc jtk jts jtt k-t ka- kaa kab kac kaj kak kao kas kat kba kbb kbc kbk kbo kbs kca kcb kcc kck kcs kct kjb kjc kjs kkb kkc kkk kks kkt koa kob koc kok koo kos kot ksa ksb ksc ksk kso kss kst kta ktb ktc ktj ktk kto kts ktt oaa oab oac oaj oak oao oas oat ob- oba obb obc obj obk obo obs obt oc- oca ocb occ ocj ock oco ocs oct oja ojb ojc ojo ojs oka okb okc okj okk oko oks oo- ooa oob ooc ook ooo oos oot os- osa osb osc osj osk oso oss ost ot- ota otb otc otk oto ots ott saa sab sac saj sak sao sas sat sba sbb sbc sbj sbk sbo sbs sbt sca scb scc scj sck sco scs sct sja sjb sjc sjj sjk sjs sjt sk- ska skb skc skj skk sko sks skt soa sob soc soj sok soo sos sot ss- ssa ssb ssc ssj ssk sso sss sst sta stb stc stj stk sto sts stt taa tab tac taj tak tao tas tat tba tbb tbc tbj tbk tbo tbs tbt tca tcb tcc tcj tck tco tcs tct tjc tjo tjs tka tkb tkc tkk tko tks tkt to- toa tob toc toj tok too tos tot tsa tsb tsc tsj tsk tso tss tst tta ttb ttc ttk tto tts ttt

a-ak a-ok aaaa aaab aaac aaas aaba aabb aabc aabt aaca aacb aacc aack aaco aacs aact aaka aaoo aasa aasc aass aast aata aatc aatk aatt abaa abab abac abaj abak abas abat abb- abba abbb abbo abbs abbt abca abcb abcc abcs abct abjs aboa abob abok aboo abos abot abs- absa abss abta abts ac-t acaa acab acac acas acat acba acca accc acco accs acct acks acoa acos acot acsa acsc acss acst acta actc acto acts actt ajab ajac ajak ajao ajas ajat ajba ajka ajob ajoo ajot ajss akaa akao akas akca akka akko akok akos akot aksa akst aoba aoca aocs aoks aoss aotc asaa asab asac asak asao asas asat asba asbo asc- asca ascb ascc ascj asco asct asja aska asko asks askt asob asoc asok asos asot assa assc assk asso asss asst asta astb astc asto asts at-t ataa atab atac atak atas atat atbs atca atcc atck atco atcs atka atkt atob atoc atok atos atot atsb atsc atst atta atto atts baaa baak baas baat baba babb babo babs bac- baca bacc back baco bacs bact baja bajs bak- baka bako baks bakt baos basa basc bask baso bass bast bata batc bato bats batt bbas bbbb bbbs bcaa bcas bcat bcbc bcbs bcca bccc bccs bcos bcsa bcsc bcss bctc bcts bjcc bjoa boab boac boak boas boat boba bobb bobo bobs boca bock boco bocs bojo bojt boka boko boks boob booc book boos boot bosa bosc bosk boso boss bost bota botb boto bots bott bsaa bsac bsas bsat bscs bskt bsos bssc bsts btaa btcc btcs btob btss bttb c-bo caaa caab caac caas caat caba cabo cabs cac- caca cacc cack caco caja caka caos casa casb casc cask caso cass cast cat- cata catb catc cato cats catt cbac cbat cbbc cbbs cbca cbcc cbcs cbct cbka cbkj cbko cbot cbsa cbsc cbta cbtc ccaa ccab ccac ccas ccat ccba ccbc ccca cccb cccc cccs ccjo ccob ccoc ccsa ccss ccst cctb cctc cctt cjbc cjbk cjca cjcb cjcj cjcs cjob cjsb cjss ckac ckat ckbc ckck ckco ckcs ckjs ckoa ckob ckoc ckoo ckos ckot cksa cksb ckso ckst cktb ckts coak coas coat coba cobb cobo cobs coca cock coco coct cojo cok- coka coko coob cook coos coot cosa cosc coso coss cost cota cotb cotc coto cots cott csaa csab csac csak csao csas csat cscb cscc csco cscs cska csks csob csos csot cssa csta cstc csto csts ctab ctba ctbs ctca ctos ctot ctsa ctsc ctss ctta ctts jaak jaas jaba jabo jabs jaca jacc jack jaco jacs jaja jaka jako jasa jasc jask jaso jass jast jato jats jbaa jbob jcbc jccc jcss jcts jjcc jkcs joab joao joba jobo jobs joca jock joco jojo joka jokb jook joos joot josa joso joss jost jota joto jots jott jsat jsss jtac jtbc jtcc jtsb k-os kaaa kaab kaak kaas kaat kaba kabb kabc kabo kacb kacc kaco kacs kact kaja kajb kajc kajk kajo kajt kaka kakc kakj kakk kako kaks