a-a a-b a-c a-t aaa aab aac aao aar aas aat aav ab- aba abb abc abo abr abs abt abv ac- aca acb acc aco acr acs act acv aoa aob aoc aoo aor aos aot aov ar- ara arb arc aro arr ars art arv as- asa asb asc aso asr ass ast asv at- ata atb atc ato atr ats att atv av- ava avb avc avo avr avs avt baa bab bac bao bar bas bat bav bba bbb bbc bbo bbr bbs bbt bca bcb bcc bco bcr bcs bct bcv boa bob boc boo bor bos bot bov bra brb bro brr brs brt brv bsa bsb bsc bso bsr bss bst bsv bta btb btc bto btr bts btt btv bva bvb bvc bvo bvr bvs bvt bvv c-- caa cab cac cao car cas cat cav cba cbb cbc cbo cbr cbs cbt cbv cca ccb ccc cco ccr ccs cct ccv co- coa cob coc coo cor cos cot cov cra crb crc cro crr crs crt crv csa csb csc cso csr css cst csv cta ctb ctc cto ctr cts ctt ctv cva cvb cvc cvo cvr cvs cvt cvv oaa oab oac oao oar oas oat oav ob- oba obb obc obo obr obs obt obv oc- oca ocb occ oco ocr ocs oct ocv oo- ooa oob ooc ooo oor oos oot oov or- ora orb orc oro orr ors ort orv os- osa osb osc oso osr oss ost osv ot- ota otb otc oto otr ots ott otv ov- ova ovb ovc ovo ovs ovv ra- raa rab rac rao rar ras rat rav rba rbb rbc rbo rbr rbs rbt rca rcb rcc rco rcr rcs rct rcv roa rob roc roo ror ros rot rov rra rrb rrc rrr rrs rrt rsa rsb rsc rso rsr rss rst rsv rta rtb rtc rto rtr rts rtt rtv rva rvb rvc rvo rvr rvs rvt rvv saa sab sac sao sar sas sat sav sba sbb sbc sbo sbr sbs sbt sbv sca scb scc sco scr scs sct scv soa sob soc soo sor sos sot sov sr- sra srb src sro srr srs srt srv ss- ssa ssb ssc sso ssr sss sst ssv sta stb stc sto str sts stt stv sva svb svc svo svr svs svt svv taa tab tac tao tar tas tat tav tba tbb tbc tbo tbr tbs tbt tbv tca tcb tcc tco tcr tcs tct tcv to- toa tob toc too tor tos tot tov tra trb trc tro trr trs trt trv tsa tsb tsc tso tsr tss tst tsv tta ttb ttc tto ttr tts ttt ttv tva tvb tvc tvo tvr tvs tvt v-a vaa vab vac vao var vas vat vav vba vbc vbo vbr vbs vbv vca vcc vco vcr vcs vct voa vob voc voo vor vos vot vov vra vrb vrc vrr vrs vrt vsa vsb vsc vso vsr vss vst vsv vta vtb vtc vto vtr vts vtt vtv vva vvb vvc vvo vvr vvs vvt vvv

-vac aaaa aaab aaac aaar aaas aaav aaba aabb aabc aabt aaca aacb aacc aaco aacr aacs aact aacv aaoo aara aarc aaro aars aart aasa aasc aass aast aata aatc aatt aava abaa abab abac abar abas abat abb- abba abbb abbo abbr abbs abbt abca abcb abcc abcr abcs abct aboa abob aboo abor abos abot abov abra abrc abro abrs abs- absa abss abta abts abva ac-t acaa acab acac acar acas acat acba acca accc acco accs acct acoa acor acos acot acr- acra acrc acro acrr acrs acrv acsa acsc acss acst acta actc acto acts actt actv acvs acvv aoba aoca aocs aora aorb aors aort aoss aotc arab arac arar aras arat arba arbs arc- arca arco arcs arct aroa arob aroo aror aros arr- arra arrc arro arrr arrs arrt ars- arsa arsc arso arst arta artc arto artr arts artv arva arvo asaa asab asac asao asar asas asat asba asbo asc- asca ascb ascc asco ascr asct asob asoc asor asos asot asra asrc asro asrs assa assc asso assr asss asst asta astb astc asto astr asts astv asva asvs at-t ataa atab atac atar atas atat atbs atca atcc atco atcr atcs atob atoc ator atos atot atra atrc atro atsb atsc atst atta atto attr atts atvs avab avao avar avas avat avcc avco avor avos avot avra avro avst avva avvo baaa baar baas baat baba babb babo babr babs bac- baca bacc baco bacs bact baos bar- bara barb barc baro barr bars bart basa basc baso bass bast bata batc bato bats batt bava bbas bbbb bbbs bbrc bcaa bcar bcas bcat bcbc bcbs bcca bccc bccs bcor bcos bcra bcrs bcsa bcsc bcss bctc bcts bcvo boab boac boar boas boat boba bobb bobo bobs boca boco bocs boob booc boor boos boot bor- bora boro borr bors bort bosa bosc boso boss bost bota botb boto bots bott bova bovo brab brac brao bras brat brav brca brcb broa brob broc broo bror bros brot brrr brrs brsb brsr brst brtc bsaa bsac bsas bsat bscs bsos bsra bssc bsts bstv btaa btcc btcs btob btor btrc btrt btss bttb bvsc c-bo caaa caab caac caas caat caba cabo cabs cac- caca cacc caco cacr caor caos cara carb carc caro carr cars cart casa casb casc caso casr cass cast cat- cata catb catc cato cats catt catv cava cavo cavs cbac cbar cbat cbbc cbbs cbca cbcc cbcr cbcs cbct cbot cbrt cbsa cbsc cbta cbtc cbtv cbva cbvb cbvr ccaa ccab ccac ccar ccas ccat ccba ccbc ccca cccb cccc cccs cccv ccob ccoc ccra ccrc ccrs ccrt ccsa ccss ccst cctb cctc cctt cctv ccvo ccvs coas coat coba cobb cobo cobs coca coco coct coob coos coot cor- cora corb corc coro corr cors cort cosa