-al a-a a-b a-c a-t aaa aab aac aaf aal aas aat aau ab- aba abb abc abf abl abs abt abu ac- aca acb acc acf acl acs act acu af- afa afb afc aff afl afs aft afu al- ala alb alc alf all als alt alu as- asa asb asc asf asl ass ast asu at- ata atb atc atf atl ats att atu au- aua aub auc auf aul aus aut b-u baa bab bac baf bal bas bat bau bba bbb bbc bbf bbl bbs bbt bbu bca bcb bcc bcf bcl bcs bct bcu bfa bfb bfc bff bfl bfs bft bfu bla blb blc blf bll bls blt blu bsa bsb bsc bsf bsl bss bst bsu bta btb btc btf btl bts btt btu bua bub buc buf bul bus but buu c-- caa cab cac caf cal cas cat cau cba cbb cbc cbf cbl cbs cbt cbu cca ccb ccc ccf ccl ccs cct ccu cfa cfb cfc cff cfl cfs cft cfu cl- cla clb clc clf cll cls clt clu csa csb csc csf csl css cst csu cta ctb ctc ctf ctl cts ctt ctu cua cub cuc cuf cul cus cut cuu faa fab fac faf fal fas fat fau fba fbb fbc fbf fbl fbs fbt fbu fca fcb fcc fcf fcl fcs fct fcu ffa ffc fff ffl ffs fft ffu fla flb flc flf fll fls flt flu fsa fsb fsc fsf fsl fss fst fsu fta ftb ftc ftf ftl fts ftt ftu fua fub fuf ful fus fut fuu la- laa lab lac laf lal las lat lau lba lbb lbc lbf lbl lbs lbt lbu lca lcb lcc lcf lcl lcs lct lcu lfa lfb lfc lff lfl lfs lft lfu lla llb llc llf lll lls llt llu lsa lsb lsc lsf lsl lss lst lsu lta ltb ltc ltf ltl lts ltt ltu lua lub luc luf lul lus lut luu saa sab sac saf sal sas sat sau sba sbb sbc sbf sbl sbs sbt sbu sca scb scc scf scl scs sct scu sfa sfb sfc sff sfl sfs sft sfu sla slb slc slf sll sls slt slu ss- ssa ssb ssc ssf ssl sss sst ssu sta stb stc stf stl sts stt stu sua sub suc suf sul sus sut suu taa tab tac taf tal tas tat tau tba tbb tbc tbf tbl tbs tbt tbu tca tcb tcc tcf tcl tcs tct tcu tfa tfb tfc tff tfl tfs tft tfu tla tlc tlf tll tls tlt tlu tsa tsb tsc tsf tsl tss tst tsu tta ttb ttc ttf ttl tts ttt ttu tua tub tuc tuf tul tus tut tuu ua- uaa uab uac uaf ual uas uat uau uba ubb ubc ubf ubl ubs ubt ubu uca ucb ucc ucf ucl ucs uct ucu ufa ufc uff ufl ufs uft ufu ula ulb ulc ulf ull uls ult ulu usa usb usc usf usl uss ust usu uta utb utc utf utl uts utt utu uua uuc uus uut uuu

a-fu aaaa aaab aaac aaaf aaal aaas aaba aabb aabc aabl aabt aaca aacb aacc aacf aacl aacs aact aacu aafa aafb aafc aaff aafl aala aalc aall aals aalu aasa aasc aasf aass aast aasu aata aatc aatf aatt aaus abaa abab abac abaf abal abas abat abau abb- abba abbb abbs abbt abca abcb abcc abcf abcl abcs abct abff abla abls abs- absa absf absl abss absu abta abts abtu abua abuf abul abus abut ac-t acaa acab acac acas acat acba acbl acca accc accf accs acct accu acfc acfl acfs acft acla aclc acls aclu acsa acsc acsl acss acst acta actc actf actl acts actt actu acu- acuf acul acus acut afaa afat afbs afca afcb afcc afcs afcu affa affc affs afft afla aflc afsa afsb afsc afst afta aftc afts afua afus alaa alac alal alas alat alau alb- alba albc albs albu alca alcc alcs alfa alfs all- alla alll alls allu alsa alsc alst alta alts alua aluf alus alut asaa asab asac asaf asal asas asat asau asba asbu asc- asca ascb ascc ascl asct asfa asla assa assc assl asss asst assu asta astb astc astl asts asub asus at-l at-t ataa atab atac atal atas atat atbs atca atcc atcf atcl atcs atfb atfc atfs atla atls atsb atsc atst atta atts attu atua atub atuc atul atus auaa auca auct aufc aufs aul- aula aulf aull auls ault aulu ausa aust ausu aut- auts baaa baaf baal baas baat baba babb babs babu bac- baca bacc bacs bact bafc baff baft bala balc balf ball bals balt balu basa basc basf bass bast basu bata batc batf bats batt batu bau- bauf baul bbas bbau bbbb bbbs bbfc bblb bbls bcaa bcas bcat bcbc bcbs bcca bccc bccl bccs bcfc bcsa bcsc bcsl bcss bctc bcts bcuc bfas bfca bfcs bffl bffs bfta bfts bftt blaa blab blac blas blat blau blbt blcu blfc blls blss blst blts blub bluf blus blut bsaa bsac bsas bsat bscs bsfa bsfc bsff bsfs bslc bssc bsts btaa btaf btcc btcl btcs btfc btla btss bttb btus bual buat buba bubb bubs bubu buca bucc bucs bucu bufc buff bula bulb bull buls bult bulu busa busc buss bust busu but- buta buts butt buus caaa caab caac caaf caal caas caat caba cabf cabs cabu cac- caca cacc cafa cafb cafc caff cafl cafs cafu cala calc calf call cals calt calu casa casb casc casl cass cast casu cat- cata catb catc catf cats catt catu cauc cauf caul caus caut cbac cbal cbat cbbc cbbs cbca cbcc cbcl cbcs cbct cbcu cbfb cbfc cblb cblc cbsa cbsc cbta cbtc cbtf cbtl cbus ccaa ccab ccac ccaf ccas ccat ccba ccbc ccca cccb cccc cccf cccl cccs cccu ccfa ccfc ccff ccfl ccla cclc ccls