-al -ic a-a a-b a-c a-i aaa aab aac aag aai aal aar aas aau ab- aba abb abc abg abi abl abr abs abu ac- aca acb acc acg aci acl acr acs acu ag- aga agb agc agg agi agl agr ags agu ai- aia aib aic aig aii ail air ais aiu al- ala alb alc alg ali all alr als alu ar- ara arb arc arg ari arl arr ars aru as- asa asb asc asg asi asl asr ass asu au- aua aub auc aug aui aul aur aus b-u baa bab bac bag bai bal bar bas bau bba bbb bbc bbg bbi bbl bbr bbs bbu bca bcb bcc bcg bci bcl bcr bcs bcu bga bgb bgc bgg bgi bgl bgr bgs bgu bi- bia bib bic big bii bil bir bis biu bla blb blc blg bli bll blr bls blu bra brb brg bri brl brr brs bru bsa bsb bsc bsg bsi bsl bsr bss bsu bua bub buc bug bui bul bur bus buu c-- caa cab cac cag cai cal car cas cau cba cbb cbc cbg cbi cbl cbr cbs cbu cca ccb ccc ccg cci ccl ccr ccs ccu cga cgb cgc cgg cgi cgl cgr cgs cgu ci- cia cib cic cig cii cil cir cis ciu cl- cla clb clc clg cli cll clr cls clu cra crb crc crg cri crl crr crs cru csa csb csc csg csi csl csr css csu cua cub cuc cug cui cul cur cus cuu gaa gab gac gag gai gal gar gas gau gba gbc gbg gbi gbl gbr gbs gbu gca gcb gcc gcg gci gcl gcr gcs gcu gga ggb ggc ggg ggi ggr ggs ggu gia gib gic gig gii gil gir gis giu gla glb glc glg gli gll glr gls glu gra grb grc grg gri grl grr grs gru gsa gsb gsc gsg gsi gsl gsr gss gsu gu- gua gub guc gug gui gul gur gus guu ia- iaa iab iac iag iai ial iar ias iau iba ibb ibc ibg ibi ibl ibr ibs ibu ica icb icc icg ici icl icr ics icu iga igb igc igg igi igl igr igs igu iia iib iic iii iil iir iis iiu il- ila ilb ilc ilg ili ill ilr ils ilu ir- ira irb irc irg iri irl irr irs iru is- isa isb isc isg isi isl isr iss isu iu- iua iub iuc iug iui iur ius la- laa lab lac lag lai lal lar las lau lba lbb lbc lbg lbi lbl lbr lbs lbu lca lcb lcc lcg lci lcl lcr lcs lcu lga lgb lgc lgg lgi lgl lgr lgs lgu lia lib lic lig lii lil lir lis liu lla llb llc llg lli lll llr lls llu lra lrb lrc lrg lri lrr lrs lru lsa lsb lsc lsg lsi lsl lsr lss lsu lua lub luc lug lui lul lur lus luu ra- raa rab rac rag rai ral rar ras rau rba rbb rbc rbg rbi rbl rbr rbs rbu rca rcb rcc rcg rci rcl rcr rcs rcu rga rgb rgc rgg rgi rgr rgs ria rib ric rig rii ril rir ris rla rlc rlg rli rll rlr rls rlu rra rrb rrc rrg rri rrl rrr rrs rru rsa rsb rsc rsg rsi rsl rsr rss rsu rua rub ruc rug rui rur rus ruu saa sab sac sag sai sal sar sas sau sba sbb sbc sbg sbi sbl sbr sbs sbu sca scb scc scg sci scl scr scs scu sga sgb sgc sgg sgi sgl sgr sgs sgu sia sib sic sig sii sil sir sis siu sla slb slc slg sli sll slr sls slu sr- sra srb src srg sri srl srr srs ss- ssa ssb ssc ssg ssi ssl ssr sss ssu sua sub suc sug sui sul sur sus suu ua- uaa uab uac uag uai ual uar uas uau uba ubb ubc ubg ubi ubl ubr ubs ubu uca ucb ucc ucg uci ucl ucr ucs ucu uga ugb ugc ugg ugi ugl ugr ugs ugu uia uib uic uig uii uil uir uis uiu ula ulb ulc ulg uli ull ulr uls ulu ur- ura urb urc urg uri url urr urs uru usa usb usc usg usi usl usr uss usu uua uuc uug uur uus uuu

a-ii aaaa aaab aaac aaai aaal aaar aaas aaba aabb aabc aabi aabl aaca aacb aacc aaci aacl aacr aacs aacu aaib aaic aaii aais aala aalc aali aall aals aalu aara aarc aari aars aaru aasa aasc aasi aass aasu aaus abaa abab abac abag abai abal abar abas abau abb- abba abbb abbi abbr abbs abca abcb abcc abci abcl abcr abcs abgl abia abib abic abig abil abir abis abiu abla abls abra abrc abri abrs abs- absa absi absl abss absu abua abug abul abus acaa acab acac acag acai acar acas acba acbl acca accc acci accs accu acga acgi acgr acgs aci- acia acic acir acis acla aclc acli aclr acls aclu acr- acra acrc acri acrr acrs acsa acsc acsi acsl acss acu- acul acur acus agac agag agai agal agar agas agau agba agca agcc agga aggi aggu agia agib agic agig agii agil agir agis agla aglc agli agls aglu agra agri agrl agsa agsg agsu agua agui agul agur agus aiai aias aiba aibl aica aicc aicr aics aiga aiia aiib aiic aiir aila aili ails ailu aira airi airs aisa aisb aisg aisi aisl aisr aiui alaa alac alag alai alal alar alas alau alb- alba albc albi albs albu alca alcc alcs alg- alga algi algs ali- alia alib alig alii alil alir alis aliu all- alla alli alll allr alls allu alsa alsc alua alug alui alur alus arab arac arag arai aral arar aras arau arba arbi arbs arc- arca arci arcs arga