-al a-a a-b a-c aaa aab aac aad aal aan aar aas aau ab- aba abb abc abd abl abn abr abs abu ac- aca acb acc acd acl acn acr acs acu ad- ada adb adc add adl adn adr ads adu al- ala alb alc ald all aln alr als alu an- ana anb anc and anl ann anr ans anu ar- ara arb arc ard arl arn arr ars aru as- asa asb asc asd asl asn asr ass asu au- aua aub auc aud aul aun aur aus b-u baa bab bac bad bal ban bar bas bau bba bbb bbc bbd bbl bbn bbr bbs bbu bca bcb bcc bcd bcl bcn bcr bcs bcu bda bdb bdc bdd bdl bdr bds bdu bla blb blc bld bll bln blr bls blu bna bnb bnc bnd bnl bnn bnr bns bnu bra brb brd brl brn brr brs bru bsa bsb bsc bsd bsl bsn bsr bss bsu bua bub buc bud bul bun bur bus buu c-- caa cab cac cad cal can car cas cau cba cbb cbc cbd cbl cbn cbr cbs cbu cca ccb ccc ccd ccl ccn ccr ccs ccu cda cdb cdc cdd cdl cdn cdr cds cdu cl- cla clb clc cld cll cln clr cls clu cn- cna cnb cnc cnd cnl cnn cnr cns cnu cra crb crc crd crl crn crr crs cru csa csb csc csd csl csn csr css csu cua cub cuc cud cul cun cur cus cuu daa dab dac dad dal dan dar das dau dba dbb dbc dbd dbl dbn dbr dbs dbu dca dcb dcc dcd dcl dcn dcr dcs dcu dda ddb ddc ddd ddl ddn ddr dds ddu dl- dla dlb dlc dld dll dlr dls dlu dna dnb dnc dnd dnl dnn dnr dns dra drb drc drd drl drn drr drs dru dsa dsb dsc dsd dsl dsn dsr dss dsu dua dub duc dud dul dun dur dus la- laa lab lac lad lal lan lar las lau lba lbb lbc lbd lbl lbr lbs lbu lca lcb lcc lcd lcl lcn lcr lcs lcu lda ldb ldc ldd ldl ldn ldr lds ldu lla llb llc lld lll lln llr lls llu lna lnb lnc lnd lnl lnn lnr lns lnu lra lrb lrc lrd lrn lrr lrs lru lsa lsb lsc lsd lsl lsn lsr lss lsu lua lub luc lud lul lun lur lus luu naa nab nac nad nal nan nar nas nau nba nbb nbc nbd nbl nbn nbr nbs nbu nca ncb ncc ncd ncl ncn ncr ncs ncu nda ndb ndc ndd ndl ndn ndr nds ndu nla nlb nlc nld nll nln nlr nls nlu nna nnb nnc nnl nnn nns nnu nra nrb nrc nrd nrl nrn nrr nrs nru nsa nsb nsc nsd nsl nsn nsr nss nsu nua nub nuc nud nul nun nur nus nuu ra- raa rab rac rad ral ran rar ras rau rba rbb rbc rbd rbl rbn rbr rbs rbu rca rcb rcc rcd rcl rcn rcr rcs rcu rda rdb rdc rdd rdl rdn rdr rds rdu rla rlc rld rll rln rlr rls rlu rna rnb rnc rnd rnn rnr rns rnu rra rrb rrc rrd rrl rrn rrr rrs rru rsa rsb rsc rsd rsl rsn rsr rss rsu rua rub ruc rud run rur rus ruu saa sab sac sad sal san sar sas sau sba sbb sbc sbd sbl sbn sbr sbs sbu sca scb scc scd scl scn scr scs scu sda sdb sdc sdd sdl sdn sdr sds sdu sla slb slc sld sll sln slr sls slu sna snb snc snd snl snn snr sns snu sr- sra srb src srd srl srn srr srs ss- ssa ssb ssc ssd ssl ssn ssr sss ssu sua sub suc sud sul sun sur sus suu ua- uaa uab uac uad ual uan uar uas uau uba ubb ubc ubl ubn ubr ubs ubu uca ucb ucc ucd ucl ucn ucr ucs ucu uda udb udc udd udl udn udr uds udu ula ulb ulc uld ull uln ulr uls ulu un- una unb unc und unl unn unr uns unu ur- ura urb urc urd url urn urr urs uru usa usb usc usd usl usn usr uss usu uua uuc uun uur uus uuu

-ana a-un aaaa aaab aaac aaad aaal aaan aaar aaas aaba aabb aabc aabd aabl aaca aacb aacc aacd aacl aacn aacr aacs aacu aada aadc aads aadu aala aalc aald aall aals aalu aana aand aara aarc aard aars aaru aasa aasc aasd aass aasu aaus abaa abab abac abad abal aban abar abas abau abb- abba abbb abbr abbs abca abcb abcc abcd abcl abcn abcr abcs abda abdu abla abls abnu abra abrc abrs abs- absa absd absl abss absu abua abud abul abun abus acaa acab acac acad acan acar acas acba acbl acca accc accd accs accu acda acdb acdc acds acla aclc aclr acls aclu acr- acra acrc acrr acrs acsa acsc acsd acsl acss acu- acul acur acus adaa adab adac adad adal adan adar adas adba adbc adcc adcs adda addc addd addl addn addr adds addu adls adna adns adra adrs adsa adsl adsr adss adua adub adun adur alaa alac alad alal alan alar alas alau alb- alba albc albs albu alca alcc alcs ald- alda aldl alds all- alla alll alln allr alls allu alna alsa alsc alsn alua alun alur alus ana- anaa anab anac anad anal anan anar anas anau anba anbb anbl anbu anca ancc and- anda andl andr ands anla anlc anln anlu anna annb anns anrc ansa ansd ansu anua anub anul anun anus arab arac arad aral aran arar aras arau arba arbs arc- arca arcs arda ardc ardl ards ardu arla arna arnd arns arr- arra arrc arrr arrs arru ars- arsa arsc arsd arsu arua arub