-ic a-a a-b a-c a-i aaa aab aac aag aai aar aau ab- aba abb abc abg abi abr abu ac- aca acb acc acg aci acr acu ag- aga agb agc agg agi agr agu ai- aia aib aic aig aii air aiu ar- ara arb arc arg ari arr aru au- aua aub auc aug aui aur b-u baa bab bac bag bai bar bau bba bbb bbc bbg bbi bbr bbu bca bcb bcc bcg bci bcr bcu bga bgb bgc bgg bgi bgr bgu bi- bia bib bic big bii bir biu bra brb brg bri brr bru bua bub buc bug bui bur buu c-- caa cab cac cag cai car cau cba cbb cbc cbg cbi cbr cbu cca ccb ccc ccg cci ccr ccu cga cgb cgc cgg cgi cgr cgu ci- cia cib cic cig cii cir ciu cra crb crc crg cri crr cru cua cub cuc cug cui cur cuu gaa gab gac gag gai gar gau gba gbc gbg gbi gbr gbu gca gcb gcc gcg gci gcr gcu gga ggb ggc ggg ggi ggr ggu gia gib gic gig gii gir giu gra grb grc grg gri grr gru gu- gua gub guc gug gui gur guu ia- iaa iab iac iag iai iar iau iba ibb ibc ibg ibi ibr ibu ica icb icc icg ici icr icu iga igb igc igg igi igr igu iia iib iic iii iir iiu ir- ira irb irc irg iri irr iru iu- iua iub iuc iug iui iur ra- raa rab rac rag rai rar rau rba rbb rbc rbg rbi rbr rbu rca rcb rcc rcg rci rcr rcu rga rgb rgc rgg rgi rgr ria rib ric rig rii rir rra rrb rrc rrg rri rrr rru rua rub ruc rug rui rur ruu ua- uaa uab uac uag uai uar uau uba ubb ubc ubg ubi ubr ubu uca ucb ucc ucg uci ucr ucu uga ugb ugc ugg ugi ugr ugu uia uib uic uig uii uir uiu ur- ura urb urc urg uri urr uru uua uuc uug uur uuu

a-ii aaaa aaab aaac aaai aaar aaba aabb aabc aabi aaca aacb aacc aaci aacr aacu aaib aaic aaii aara aarc aari aaru abaa abab abac abag abai abar abau abb- abba abbb abbi abbr abca abcb abcc abci abcr abia abib abic abig abir abiu abra abrc abri abua abug acaa acab acac acag acai acar acba acca accc acci accu acga acgi acgr aci- acia acic acir acr- acra acrc acri acrr acu- acur agac agag agai agar agau agba agca agcc agga aggi aggu agia agib agic agig agii agir agra agri agua agui agur aiai aiba aica aicc aicr aiga aiia aiib aiic aiir aira airi aiui arab arac arag arai arar arau arba arbi arc- arca arci arga argb argi aria arib arig arii arr- arra arrc arrg arri arrr arru arua arub arug arui auaa auca auci auga augi aur- aura auri auug ba-i baaa baar baba babb babi babr babu bac- baca bacc baci baga bagg bagi baia baib baic baig bair bar- bara barb barc barg bari barr baru bau- baug baur bbau bbbb bbci bbga bbrc bbrg bcaa bcar bcbc bcbg bcca bccc bcci bcia bcra bcru bcuc bgca bgia biar biba bibb bibi bica bicc bicg bici biga bigb bigc bigg bigu bira birb birg biri birr biru brab brac brag brai brau brca brcb bria bric brig brrr bruc brug buar buba bubb bubi bubu buca bucc buci bucu buga bugg bugi buic buir buiu bur- bura burb burg buri burr buru caaa caab caac caba cabg cabi cabu cac- caca cacc caci cacr caga cagg cagi cagr caia caib caic cair caiu cara carb carc cari carr cauc cbac cbar cbbc cbca cbcc cbcr cbcu cbga cbgb cbia cbir ccaa ccab ccac ccag ccai ccar ccba ccbc ccca cccb cccc ccci cccu ccga ccgc ccic ccii ccir ccra ccrc ccrg ccri ccuc cgac cgcc cgcg ciaa ciar ciau ciba cibc cibi cica cicc cici cicr cicu ciga cigi cigu ciia ciii cira cirb circ ciri cirr ciuc crab crac crag crai crar crau crbc crbu crca crcc crcr cria crib cric crig criu crub crug cuau cub- cuba cubb cubi cuca cucc cuci cuga cui- cuir cura curb curi curr gaar gaba gabb gabi gabr gabu gaga gagg gagi gagu gaia gaig gair gaiu gara garb garg gari garr gaua gaub gaur gbag gc-c gcaa gcbc gccc gcic gcii gcrg gggg giaa giac giai giba gibb gica gicr giga gigg gigi gira girg giri girr giru giur grab grac grai grau grbr grcc gria grib gric grig grrr grua grub grug grui grur guaa guac guag guar guba gubb gubi gubu guca guci guga gugb gugg gugi gugu guia guib gura gurb gurg guri gurr guru iaaa iaac iaai iaba iaca iacc iacr iacu iaia iara iarc iaru ibac ibar ibca ibga ibia ibra ibrc ibri icaa icab icac icag icai icar icbc icca iccb iccc icci iccr iccu icga icgc icra icrc icrr icru icub igac igar igba igbc igcc igga igia igra igri igua iiac iica iiii iira iirc iiuc irac irai irar irca ircc ircg ircu iri- iria iric irig irra irrc irri iucc iuiu iura raab raag raba rabb rabi rabu rac- raca racc raci racu raga ragg ragi ragu raia raic raig raii rair raiu rara rarb rari raua raub rauc rbbb rbbr rcac rcbc rccb rccc rcga rcgc rcic rcrg rgba rgbi riaa riab riai riau rib- riba ribu rica ricc riga rigg rigi rigu riia riri rrrr ruag ruba rubb rubi rubu ruca ruci ruga rugg rugi rura rurc ruri ruru uabc uaca uair uarc uaru uaua ubac ubar ubba ubbi ubic ubii ubir ubra ucai ucar ucbc ucca ucci ucrc ucua ugab ugar ugcc ugcg ugia ugra ugri ugur uguu uica uira uirr urac urai urau urba urbi urca urci urga urgi urgu uria