-al a-a a-b a-c a-t aaa aab aac aal aan aar aas aat ab- aba abb abc abl abn abr abs abt ac- aca acb acc acl acn acr acs act al- ala alb alc all aln alr als alt an- ana anb anc anl ann anr ans ant ar- ara arb arc arl arn arr ars art as- asa asb asc asl asn asr ass ast at- ata atb atc atl atn atr ats att baa bab bac bal ban bar bas bat bba bbb bbc bbl bbn bbr bbs bbt bca bcb bcc bcl bcn bcr bcs bct bla blb blc bll bln blr bls blt bna bnb bnc bnl bnn bnr bns bnt bra brb brl brn brr brs brt bsa bsb bsc bsl bsn bsr bss bst bta btb btc btl btn btr bts btt c-- caa cab cac cal can car cas cat cba cbb cbc cbl cbn cbr cbs cbt cca ccb ccc ccl ccn ccr ccs cct cl- cla clb clc cll cln clr cls clt cn- cna cnb cnc cnl cnn cnr cns cnt cra crb crc crl crn crr crs crt csa csb csc csl csn csr css cst cta ctb ctc ctl ctn ctr cts ctt la- laa lab lac lal lan lar las lat lba lbb lbc lbl lbr lbs lbt lca lcb lcc lcl lcn lcr lcs lct lla llb llc lll lln llr lls llt lna lnb lnc lnl lnn lnr lns lnt lra lrb lrc lrn lrr lrs lrt lsa lsb lsc lsl lsn lsr lss lst lta ltb ltc ltl ltr lts ltt naa nab nac nal nan nar nas nat nba nbb nbc nbl nbn nbr nbs nbt nca ncb ncc ncl ncn ncr ncs nct nla nlb nlc nll nln nlr nls nlt nna nnb nnc nnl nnn nns nnt nra nrb nrc nrl nrn nrr nrs nrt nsa nsb nsc nsl nsn nsr nss nst nta ntb ntc ntn ntr nts ntt ra- raa rab rac ral ran rar ras rat rba rbb rbc rbl rbn rbr rbs rbt rca rcb rcc rcl rcn rcr rcs rct rla rlc rll rln rlr rls rlt rna rnb rnc rnn rnr rns rnt rra rrb rrc rrl rrn rrr rrs rrt rsa rsb rsc rsl rsn rsr rss rst rta rtb rtc rtl rtn rtr rts rtt saa sab sac sal san sar sas sat sba sbb sbc sbl sbn sbr sbs sbt sca scb scc scl scn scr scs sct sla slb slc sll sln slr sls slt sna snb snc snl snn snr sns snt sr- sra srb src srl srn srr srs srt ss- ssa ssb ssc ssl ssn ssr sss sst sta stb stc stl stn str sts stt taa tab tac tal tan tar tas tat tba tbb tbc tbl tbn tbr tbs tbt tca tcb tcc tcl tcn tcr tcs tct tla tlc tll tln tlr tls tlt tna tnb tnc tnl tnn tnr tns tnt tra trb trc trl trn trr trs trt tsa tsb tsc tsl tsn tsr tss tst tta ttb ttc ttl ttn ttr tts ttt

-ana aaaa aaab aaac aaal aaan aaar aaas aaba aabb aabc aabl aabt aaca aacb aacc aacl aacn aacr aacs aact aala aalc aall aals aana aara aarc aars aart aasa aasc aass aast aata aatc aatt abaa abab abac abal aban abar abas abat abb- abba abbb abbr abbs abbt abca abcb abcc abcl abcn abcr abcs abct abla abls abra abrc abrs abs- absa absl abss abta abts ac-t acaa acab acac acan acar acas acat acba acbl acca accc accs acct acla aclc aclr acls acr- acra acrc acrr acrs acsa acsc acsl acss acst acta actc actl acts actt alaa alac alal alan alar alas alat alb- alba albc albs alca alcc alcs all- alla alll alln allr alls alna alsa alsc alsn alst alta altn alts ana- anaa anab anac anal anan anar anas anat anba anbb anbl anca ancc anct anla anlc anln anna annb anns annt anrc ansa ant- anta antl antr ants antt arab arac aral aran arar aras arat arba arbs arc- arca arcs arct arla arna arns arnt arr- arra arrc arrr arrs arrt ars- arsa arsc arst arta artc artr arts asaa asab asac asal asan asar asas asat asba asc- asca ascb ascc ascl ascr asct asla aslr asnc asnl asra asrc asrs assa assc assl assn assr asss asst asta astb astc astl astr asts at-l at-t ataa atab atac atal atan atar atas atat atbs atca atcc atcl atcr atcs atla atls atna atns atra atrc atrn atsb atsc atst atta attn attr atts baaa baal baan baar baas baat baba babb babr babs bac- baca bacc bacn bacs bact bala balc ball bals balt bana banc bann banr bans bant bar- bara barb barc barn barr bars bart basa basc bass bast bata batc batn bats batt bbas bbbb bbbs bblb bbls bbrc bcaa bcar bcas bcat bcbc bcbs bcca bccc bccl bccs bcra bcrs bcsa bcsc bcsl bcsn bcss bctc bcts blaa blab blac blan blas blat blbt blls blrc blss blst blts bnas bnrr bnss bnta brab brac bran bras brat brca brcb brls brna brns brrr brrs brsb brsr brst brtc bsaa bsac bsas bsat bscs bslc bsns bsra bssc bsts btaa btan btcc btcl btcs btla btrc btrt btss bttb caaa caab caac caal caan caas caat caba cabs cac- caca cacc cacr cala calc call cals calt cana canc cann cans cant cara carb carc carl carn carr cars cart casa casb casc casl casr cass cast cat- cata catb catc cats catt cbac cbal cbar cbat cbbc cbbs cbca cbcc cbcl cbcn cbcr cbcs cbct cblb cblc cbln cbna cbrl cbrn cbrt cbsa cbsc cbsn cbta cbtc cbtl ccaa ccab ccac ccar ccas ccat ccba ccbc ccbn ccca cccb cccc cccl cccs ccla cclc ccls ccna ccnb ccnc ccnr ccns ccra ccrc ccrl ccrs ccrt ccsa ccsl