-al a-a a-b a-c aaa aab aac aal aam aas aau ab- aba abb abc abl abm abs abu ac- aca acb acc acl acm acs acu al- ala alb alc all alm als alu ama amb amc aml amm ams amu as- asa asb asc asl asm ass asu au- aua aub auc aul aum aus b-u baa bab bac bal bam bas bau bba bbb bbc bbl bbm bbs bbu bca bcb bcc bcl bcm bcs bcu bla blb blc bll blm bls blu bma bmb bmc bml bmm bms bmu bsa bsb bsc bsl bsm bss bsu bua bub buc bul bum bus buu c-- caa cab cac cal cam cas cau cba cbb cbc cbl cbm cbs cbu cca ccb ccc ccl ccm ccs ccu cl- cla clb clc cll clm cls clu cma cmb cmc cml cmm cms cmu csa csb csc csl csm css csu cua cub cuc cul cum cus cuu la- laa lab lac lal lam las lau lba lbb lbc lbl lbm lbs lbu lca lcb lcc lcl lcm lcs lcu lla llb llc lll llm lls llu lma lmb lmc lml lmm lms lmu lsa lsb lsc lsl lsm lss lsu lua lub luc lul lum lus luu maa mab mac mal mam mas mau mba mbb mbc mbl mbm mbs mbu mc- mca mcb mcc mcl mcm mcs mcu mla mlb mlc mll mlm mls mlu mma mmb mmc mml mmm mms mmu msa msb msc msl msm mss msu mua mub muc mul mum mus muu saa sab sac sal sam sas sau sba sbb sbc sbl sbm sbs sbu sca scb scc scl scm scs scu sla slb slc sll slm sls slu sma smb smc sml smm sms smu ss- ssa ssb ssc ssl ssm sss ssu sua sub suc sul sum sus suu ua- uaa uab uac ual uam uas uau uba ubb ubc ubl ubs ubu uca ucb ucc ucl ucm ucs ucu ula ulb ulc ull ulm uls ulu um- uma umb umc uml umm ums umu usa usb usc usl usm uss usu uua uuc uum uus uuu

aaaa aaab aaac aaal aaam aaas aaba aabb aabc aabl aabm aaca aacb aacc aacl aacm aacs aacu aala aalc aall aals aalu aama aamb aamc aams aasa aasc aasm aass aasu aaus abaa abab abac abal abam abas abau abb- abba abbb abbs abca abcb abcc abcl abcs abla abls abma abmb abmc abms abs- absa absl abss absu abua abul abum abus acaa acab acac acas acba acbl acca accc accm accs accu acla aclc acls aclu acma acmc acms acmu acsa acsc acsl acsm acss acu- acul acum acus alaa alac alal alam alas alau alb- alba albc albm albs albu alca alcc alcs all- alla alll alls allu alma almc alms almu alsa alsc alua alum alus amaa amac amal amam amas amb- amba ambs ambu amca amcc amcs amla amm- amma ammu amsa amsc amsl amss amua amul amum asaa asab asac asal asam asas asau asba asbm asbu asc- asca ascb ascc ascl asla asma asml asmm asms assa assc assl asss assu asub asum asus auaa auca aul- aula aull auls aulu auma ausa ausm ausu baaa baal baam baas baba babb babm babs babu bac- baca bacc bacs bala balc ball balm bals balu bama bamb bamc baml bamm bams bamu basa basc bass basu bau- baul baum bbas bbau bbbb bbbs bbcm bblb bbls bcaa bcam bcas bcbc bcbs bcca bccc bccl bccm bccs bcma bcms bcsa bcsc bcsl bcsm bcss bcuc blaa blab blac blam blas blau blcu blls blss blub blum blus bmaa bmus bsaa bsac bsam bsas bscs bslc bsms bssc bssm bual buba bubb bubs bubu buca bucc bucs bucu bula bulb bull buls bulu bum- buma bumb bums busa busc buss busu buus caaa caab caac caal caam caas caba cabs cabu cac- caca cacc cacm cala calc call calm cals calu cama camb camc caml camm cams casa casb casc casl casm cass casu cauc caul caum caus cbac cbal cbbc cbbs cbca cbcc cbcl cbcm cbcs cbcu cblb cblc cbms cbsa cbsc cbsm cbus ccaa ccab ccac ccam ccas ccba ccbc ccca cccb cccc cccl cccm cccs cccu ccla cclc cclm ccls ccma ccmb ccmc ccmm ccms ccsa ccsl ccss ccuc ccus clab clam clas clau clsa clsc clsm club clum cmaa cmac cmas cmba cmbc cmbs cmcc cmcs cmla cmll cmmb cmmc cmml cmms cmsa cmsc cmus csaa csab csac csas csbm cscb cscc cscl cscs csla cslu csma csmc csmu cssa cssm csua csum csus cuau cub- cuba cubb cubs cuca cucc cucm cula culb culc cull culm culs cum- cuma cums cusa cusb cuss cusu laaa laac laal laam laas laba labs labu laca lacc lacl lacs lacu lala lall lalm lalu lama lamb lamm lams lamu lasa lasm lass lasu laub laul laus lbcc lbmc lbms lbsc lcac lcbc lcca lccc lccm lccs lcls lcms lcsc llbs llcc llcs lllc llll llms lmcc lmms lsam lsbu lscb lscm lscs lsla lssa luas luau luba lubs luca lucs lula lull lulu luma lumb lumc lums lusa luss luua maaa maac maal maam maas maba mabs mabu mac- maca macb macc macs macu mal- mala mall malm mals malu mama mamc mams mamu masa masc mass masu maua maul maum maus mbac mbam mbas mbba mbbs mbca mbcs mbms mbsl mbus mcaa mcac mcas mcba mcbc mcca mccc mccl mcla mcmc mcml mcsa mcss mlab mlas mlba mlcc mlss mmaa mmab mmac mmas mmcc mmcl mmcm mmcs mmmc mmmm mmms mmsc mmsu mmus msaa msas msau msba msca mscc mscl msma msmb msmc msml msmm msms msmu mssa mssm msus muac mubs muc- mucc mucu mula mull mulm mulu muma mumm mums mumu musa musc musl muss musu sa-c saab saac saal saam saas saba sabb sabc sabs sabu saca sacc sacs sacu sala salc sall salm sals salu sam- sama samc saml samm sams samu