a-a a-b a-c aaa aab aac aaj aak aao aas aav ab- aba abb abc abj abk abo abs abv ac- aca acb acc acj ack aco acs acv aja ajb ajc ajj ajk ajo ajs aka akb akc akj akk ako aks akv aoa aob aoc aoj aok aoo aos aov as- asa asb asc asj ask aso ass asv av- ava avb avc avk avo avs baa bab bac baj bak bao bas bav bba bbb bbc bbk bbo bbs bca bcb bcc bcj bck bco bcs bcv bja bjc bjj bjk bjs bka bkb bkc bkk bko bks bkv boa bob boc boj bok boo bos bov bsa bsb bsc bsj bsk bso bss bsv bva bvb bvc bvk bvo bvs bvv c-- c-j caa cab cac caj cak cao cas cav cba cbb cbc cbj cbk cbo cbs cbv cca ccb ccc ccj cck cco ccs ccv cja cjb cjc cjk cjs cka ckb ckc cko cks co- coa cob coc coj cok coo cos cov csa csb csc csj csk cso css csv cva cvb cvc cvk cvo cvs cvv jaa jab jac jaj jak jao jas jav jba jbc jbj jbk jbo jbs jca jcb jcc jck jco jcs jja jjb jjc jjj jjk jjs jka jkb jkk jko jks jkv joa job joc joj jok joo jos jsa jsb jsc jsj jsk jso jss jsv jvb jvc jvs ka- kaa kab kac kaj kak kao kas kav kba kbb kbc kbk kbo kbs kca kcb kcc kck kcs kjb kjc kjs kkb kkc kkk kks kkv koa kob koc kok koo kos ksa ksb ksc ksk kso kss ksv kva kvb kvk kvo kvs kvv oaa oab oac oaj oak oao oas oav ob- oba obb obc obj obk obo obs obv oc- oca ocb occ ocj ock oco ocs ocv oja ojb ojc ojo ojs oka okb okc okj okk oko oks oo- ooa oob ooc ook ooo oos oov os- osa osb osc osj osk oso oss osv ov- ova ovb ovc ovo ovs ovv saa sab sac saj sak sao sas sav sba sbb sbc sbj sbk sbo sbs sbv sca scb scc scj sck sco scs scv sja sjb sjc sjj sjk sjs sk- ska skb skc skj skk sko sks soa sob soc soj sok soo sos sov ss- ssa ssb ssc ssj ssk sso sss ssv sva svb svc svk svo svs svv v-a vaa vab vac vaj vak vao vas vav vba vbc vbk vbo vbs vbv vca vcc vco vcs vja vjs vka vkb voa vob voc vok voo vos vov vsa vsb vsc vsk vso vss vsv vva vvb vvc vvo vvs vvv

-vac a-ak a-ok aaaa aaab aaac aaas aaav aaba aabb aabc aaca aacb aacc aack aaco aacs aacv aaka aaoo aasa aasc aass aava abaa abab abac abaj abak abas abb- abba abbb abbo abbs abca abcb abcc abcs abjs aboa abob abok aboo abos abov abs- absa abss abva acaa acab acac acas acba acca accc acco accs acks acoa acos acsa acsc acss acvs acvv ajab ajac ajak ajao ajas ajba ajka ajob ajoo ajss akaa akao akas akca akka akko akok akos aksa aoba aoca aocs aoks aoss asaa asab asac asak asao asas asba asbo asc- asca ascb ascc ascj asco asja aska asko asks asob asoc asok asos assa assc assk asso asss asva asvs avab avaj avao avas avcc avco avos avva avvo baaa baak baas baba babb babo babs bac- baca bacc back baco bacs baja bajs bak- baka bako baks baos basa basc bask baso bass bava bbas bbbb bbbs bcaa bcas bcbc bcbs bcca bccc bccs bcos bcsa bcsc bcss bcvo bjcc bjoa boab boac boak boas boba bobb bobo bobs boca bock boco bocs bojo boka boko boks boob booc book boos bosa bosc bosk boso boss bova bovo bsaa bsac bsas bscs bsos bssc bvsc c-bo caaa caab caac caas caba cabo cabs cac- caca cacc cack caco caja caka caos casa casb casc cask caso cass cava cavo cavs cbac cbbc cbbs cbca cbcc cbcs cbka cbkj cbko cbsa cbsc cbva cbvb ccaa ccab ccac ccas ccba ccbc ccca cccb cccc cccs cccv ccjo ccob ccoc ccsa ccss ccvo ccvs cjbc cjbk cjca cjcb cjcj cjcs cjkv cjob cjsb cjss cjvb ckac ckbc ckck ckco ckcs ckcv ckjs ckjv ckoa ckob ckoc ckoo ckos cksa cksb ckso ckvo coak coas coba cobb cobo cobs coca cock coco cojo cok- coka coko coob cook coos cosa cosc coso coss cova covo csaa csab csac csak csao csas csav cscb cscc csco cscs cska csks csob csos cssa cvac cvas cvbs cvca cvcc cvss jaak jaas jaba jabo jabs jaca jacc jack jaco jacs jaja jaka jako jasa jasc jask jaso jass java jbaa jbob jcbc jccc jcss jjcc jkcs joab joao joba jobo jobs joca jock joco jojo joka jokb jook joos josa joso joss jova jovo jsss k-os kaaa kaab kaak kaas kaba kabb kabc kabo kacb kacc kaco kacs kacv kaja kajb kajc kajk kajo kaka kakc kakj kakk kako kaks kaoa kaoc kaok kaos kas- kasa kasb kasc kask kaso kass kava kavb kavo kavs kavv kbaa kbab kbac kbak kbas kbba kbbb kbbc kbbk kbbo kbbs kbca kbcb kbck kbco kbcs kbja kbjc kbjk kbjs kbkb kbkk kbko kbkv kboa kbob kboc kbok kboo kbos kbov kbsa kbsb kbsj kbsk kbso kbss kbsv kbva kbvb kbvc kbvo kcaa kcab kcac kcas kcav kcba kcbc kcbk kcbs kcca kccb kccc kcck kccv kcjb kcjc kcjj kcjk kckc kckj kckk kcko kckv kcob kcos kcsa kcsb kcsc kcsj kcss kcvj kcvk kcvo kcvs kcvv kjaa kjac kjak kjas kjav kjbb kjcb kjcc kjck kjcs kjcv kjjj kjjk kjjo kjjs kjkj kjkk kjks kjoc kjoj kjok kjsa kjsk kjvc kjvv kkaa kkac kkba kkbb kkbj kkbo kkbs kkcb kkcj kkck kkco kkcs kkjb kkjk kkkj kkkk kkoa kkob kkoj kkoo kkov kksa kksj kkss kkvv koab koac koak koas