-ic a-a a-b a-c a-i aaa aab aac aag aai aar aas aau ab- aba abb abc abg abi abr abs abu ac- aca acb acc acg aci acr acs acu ag- aga agb agc agg agi agr ags agu ai- aia aib aic aig aii air ais aiu ar- ara arb arc arg ari arr ars aru as- asa asb asc asg asi asr ass asu au- aua aub auc aug aui aur aus b-u baa bab bac bag bai bar bas bau bba bbb bbc bbg bbi bbr bbs bbu bca bcb bcc bcg bci bcr bcs bcu bga bgb bgc bgg bgi bgr bgs bgu bi- bia bib bic big bii bir bis biu bra brb brg bri brr brs bru bsa bsb bsc bsg bsi bsr bss bsu bua bub buc bug bui bur bus buu c-- caa cab cac cag cai car cas cau cba cbb cbc cbg cbi cbr cbs cbu cca ccb ccc ccg cci ccr ccs ccu cga cgb cgc cgg cgi cgr cgs cgu ci- cia cib cic cig cii cir cis ciu cra crb crc crg cri crr crs cru csa csb csc csg csi csr css csu cua cub cuc cug cui cur cus cuu gaa gab gac gag gai gar gas gau gba gbc gbg gbi gbr gbs gbu gca gcb gcc gcg gci gcr gcs gcu gga ggb ggc ggg ggi ggr ggs ggu gia gib gic gig gii gir gis giu gra grb grc grg gri grr grs gru gsa gsb gsc gsg gsi gsr gss gsu gu- gua gub guc gug gui gur gus guu ia- iaa iab iac iag iai iar ias iau iba ibb ibc ibg ibi ibr ibs ibu ica icb icc icg ici icr ics icu iga igb igc igg igi igr igs igu iia iib iic iii iir iis iiu ir- ira irb irc irg iri irr irs iru is- isa isb isc isg isi isr iss isu iu- iua iub iuc iug iui iur ius ra- raa rab rac rag rai rar ras rau rba rbb rbc rbg rbi rbr rbs rbu rca rcb rcc rcg rci rcr rcs rcu rga rgb rgc rgg rgi rgr rgs ria rib ric rig rii rir ris rra rrb rrc rrg rri rrr rrs rru rsa rsb rsc rsg rsi rsr rss rsu rua rub ruc rug rui rur rus ruu saa sab sac sag sai sar sas sau sba sbb sbc sbg sbi sbr sbs sbu sca scb scc scg sci scr scs scu sga sgb sgc sgg sgi sgr sgs sgu sia sib sic sig sii sir sis siu sr- sra srb src srg sri srr srs ss- ssa ssb ssc ssg ssi ssr sss ssu sua sub suc sug sui sur sus suu ua- uaa uab uac uag uai uar uas uau uba ubb ubc ubg ubi ubr ubs ubu uca ucb ucc ucg uci ucr ucs ucu uga ugb ugc ugg ugi ugr ugs ugu uia uib uic uig uii uir uis uiu ur- ura urb urc urg uri urr urs uru usa usb usc usg usi usr uss usu uua uuc uug uur uus uuu

a-ii aaaa aaab aaac aaai aaar aaas aaba aabb aabc aabi aaca aacb aacc aaci aacr aacs aacu aaib aaic aaii aais aara aarc aari aars aaru aasa aasc aasi aass aasu aaus abaa abab abac abag abai abar abas abau abb- abba abbb abbi abbr abbs abca abcb abcc abci abcr abcs abia abib abic abig abir abis abiu abra abrc abri abrs abs- absa absi abss absu abua abug abus acaa acab acac acag acai acar acas acba acca accc acci accs accu acga acgi acgr acgs aci- acia acic acir acis acr- acra acrc acri acrr acrs acsa acsc acsi acss acu- acur acus agac agag agai agar agas agau agba agca agcc agga aggi aggu agia agib agic agig agii agir agis agra agri agsa agsg agsu agua agui agur agus aiai aias aiba aica aicc aicr aics aiga aiia aiib aiic aiir aira airi airs aisa aisb aisg aisi aisr aiui arab arac arag arai arar aras arau arba arbi arbs arc- arca arci arcs arga argb argi args aria arib arig arii aris arr- arra arrc arrg arri arrr arrs arru ars- arsa arsc arsi arsu arua arub arug arui asaa asab asac asag asai asar asas asau asba asbu asc- asca ascb ascc asci ascr asia asic asii asir asis asra asrc asrg asrs asru assa assc assi assr asss assu asub asui asur asus auaa auca auci auga augi augs auis aur- aura auri ausa ausu auug ba-i baaa baar baas baba babb babi babr babs babu bac- baca bacc baci bacs baga bagg bagi bags baia baib baic baig bair bais bar- bara barb barc barg bari barr bars baru basa basc basi bass basu bau- baug baur bbas bbau bbbb bbbs bbci bbga bbrc bbrg bcaa bcar bcas bcbc bcbg bcbs bcca bccc bcci bccs bcgs bcia bcis bcra bcrs bcru bcsa bcsc bcss bcuc bgca bggs bgia biar bias biba bibb bibi bibs bica bicc bicg bici bics biga bigb bigc bigg bigs bigu biis bira birb birg biri birr birs biru bis- bisa bisc biss bisu brab brac brag brai bras brau brca brcb bria bric brig bris brrr brrs brsb brsr bruc brug brus bsaa bsac bsas bsci bscs bsgs bsic bsra bssc buar buba bubb bubi bubs bubu buca bucc buci bucs bucu buga bugg bugi bugs buic buir buis buiu bur- bura burb burg buri burr burs buru busa busc busi buss busu buus caaa caab caac caas caba cabg cabi cabs cabu cac- caca cacc caci cacr caga cagg cagi cagr cags caia caib caic cair cais caiu cara carb carc cari carr cars casa casb casc casi casr cass casu cauc caus cbac cbar cbbc cbbs cbca cbcc cbcr cbcs cbcu cbga cbgb cbia cbir cbsa cbsc cbsi cbus ccaa ccab ccac ccag ccai ccar