-al a-a a-b a-c aaa aab aac aaf aal aan aas aau ab- aba abb abc abf abl abn abs abu ac- aca acb acc acf acl acn acs acu af- afa afb afc aff afl afn afs afu al- ala alb alc alf all aln als alu an- ana anb anc anf anl ann ans anu as- asa asb asc asf asl asn ass asu au- aua aub auc auf aul aun aus b-u baa bab bac baf bal ban bas bau bba bbb bbc bbf bbl bbn bbs bbu bca bcb bcc bcf bcl bcn bcs bcu bfa bfb bfc bff bfl bfn bfs bfu bla blb blc blf bll bln bls blu bna bnb bnc bnf bnl bnn bns bnu bsa bsb bsc bsf bsl bsn bss bsu bua bub buc buf bul bun bus buu c-- caa cab cac caf cal can cas cau cba cbb cbc cbf cbl cbn cbs cbu cca ccb ccc ccf ccl ccn ccs ccu cfa cfb cfc cff cfl cfn cfs cfu cl- cla clb clc clf cll cln cls clu cn- cna cnb cnc cnf cnl cnn cns cnu csa csb csc csf csl csn css csu cua cub cuc cuf cul cun cus cuu faa fab fac faf fal fan fas fau fba fbb fbc fbf fbl fbn fbs fbu fca fcb fcc fcf fcl fcn fcs fcu ffa ffc fff ffl ffn ffs ffu fla flb flc flf fll fln fls flu fna fnb fnc fnf fnl fnn fns fnu fsa fsb fsc fsf fsl fsn fss fsu fua fub fuf ful fun fus fuu la- laa lab lac laf lal lan las lau lba lbb lbc lbf lbl lbs lbu lca lcb lcc lcf lcl lcn lcs lcu lfa lfb lfc lff lfl lfn lfs lfu lla llb llc llf lll lln lls llu lna lnb lnc lnl lnn lns lnu lsa lsb lsc lsf lsl lsn lss lsu lua lub luc luf lul lun lus luu naa nab nac naf nal nan nas nau nba nbb nbc nbf nbl nbn nbs nbu nca ncb ncc ncf ncl ncn ncs ncu nfa nfb nfc nff nfl nfn nfs nfu nla nlb nlc nlf nll nln nls nlu nna nnb nnc nnf nnl nnn nns nnu nsa nsb nsc nsf nsl nsn nss nsu nua nub nuc nul nun nus nuu saa sab sac saf sal san sas sau sba sbb sbc sbf sbl sbn sbs sbu sca scb scc scf scl scn scs scu sfa sfb sfc sff sfl sfn sfs sfu sla slb slc slf sll sln sls slu sna snb snc snf snl snn sns snu ss- ssa ssb ssc ssf ssl ssn sss ssu sua sub suc suf sul sun sus suu ua- uaa uab uac uaf ual uan uas uau uba ubb ubc ubf ubl ubn ubs ubu uca ucb ucc ucf ucl ucn ucs ucu ufa ufc uff ufl ufn ufs ufu ula ulb ulc ulf ull uln uls ulu un- una unb unc unf unl unn uns unu usa usb usc usf usl usn uss usu uua uuc uun uus uuu

-ana a-fu a-un aaaa aaab aaac aaaf aaal aaan aaas aaba aabb aabc aabl aaca aacb aacc aacf aacl aacn aacs aacu aafa aafb aafc aaff aafl aala aalc aall aals aalu aana aasa aasc aasf aass aasu aaus abaa abab abac abaf abal aban abas abau abb- abba abbb abbs abca abcb abcc abcf abcl abcn abcs abff abla abls abnu abs- absa absf absl abss absu abua abuf abul abun abus acaa acab acac acan acas acba acbl acca accc accf accs accu acfc acfl acfs acla aclc acls aclu acsa acsc acsl acss acu- acuf acul acus afaa afan afbs afca afcb afcc afcs afcu affa affc affs afla aflc afsa afsb afsc afua afus alaa alac alal alan alas alau alb- alba albc albs albu alca alcc alcs alfa alfs all- alla alll alln alls allu alna alsa alsc alsn alua aluf alun alus ana- anaa anab anac anal anan anas anau anba anbb anbl anbu anca ancc anfa anla anlc anln anlu anna annb anns ansa ansf ansu anua anub anuf anul anun anus asaa asab asac asaf asal asan asas asau asba asbu asc- asca ascb ascc ascl asfa asla asnc asnl assa assc assl assn asss assu asub asun asus auaa auca aufc aufs aul- aula aulf aull auln auls aulu auna ausa ausu baaa baaf baal baan baas baba babb babs babu bac- baca bacc bacn bacs bafc baff bala balc balf ball bals balu bana banc bann bans banu basa basc basf bass basu bau- bauf baul bbas bbau bbbb bbbs bbfc bbfn bblb bbls bcaa bcas bcbc bcbs bcca bccc bccl bccs bcfc bcnu bcsa bcsc bcsl bcsn bcss bcuc bfas bfca bfcs bffl bffs blaa blab blac blan blas blau blcu blfc blls blss blub bluf blus bnas bnss bsaa bsac bsas bscs bsfa bsfc bsff bsfs bslc bsns bssc bual buba bubb bubs bubu buca bucc bucs bucu bufc buff bula bulb bull buls bulu buna bunb bunn buns bunu busa busc buss busu buus caaa caab caac caaf caal caan caas caba cabf cabs cabu cac- caca cacc cafa cafb cafc caff cafl cafs cafu cala calc calf call cals calu cana canc cann cans casa casb casc casl cass casu cauc cauf caul caus cbac cbal cbbc cbbs cbca cbcc cbcl cbcn cbcs cbcu cbfb cbfc cblb cblc cbln cbna cbsa cbsc cbsn cbus ccaa ccab ccac ccaf ccas ccba ccbc ccbn ccca cccb cccc cccf cccl cccs cccu ccfa ccfc ccff ccfl ccla cclc ccls ccna ccnb ccnc ccnf ccns ccnu ccsa ccsf ccsl ccsn ccss ccuc ccus cfaa cfab cfac cfbc cfbn cfbs cfca cfcb cfcf cfcl cfcn cfcs cffb cfln cfls cfnb cfns cfsa cfsl cfun clab claf clan clas clau clsa clsc club clun cnaa cnac cnas cnbc cnbl cnfa cnna cnsa cnsl cnss csaa csab csac csas csbf cscb cscc