-ic a-a a-b a-c a-i aaa aab aac aai aar aas aau ab- aba abb abc abi abr abs abu ac- aca acb acc aci acr acs acu ai- aia aib aic aii air ais aiu ar- ara arb arc ari arr ars aru as- asa asb asc asi asr ass asu au- aua aub auc aui aur aus b-u baa bab bac bai bar bas bau bba bbb bbc bbi bbr bbs bbu bca bcb bcc bci bcr bcs bcu bi- bia bib bic bii bir bis biu bra brb bri brr brs bru bsa bsb bsc bsi bsr bss bsu bua bub buc bui bur bus buu c-- caa cab cac cai car cas cau cba cbb cbc cbi cbr cbs cbu cca ccb ccc cci ccr ccs ccu ci- cia cib cic cii cir cis ciu cra crb crc cri crr crs cru csa csb csc csi csr css csu cua cub cuc cui cur cus cuu ia- iaa iab iac iai iar ias iau iba ibb ibc ibi ibr ibs ibu ica icb icc ici icr ics icu iia iib iic iii iir iis iiu ir- ira irb irc iri irr irs iru is- isa isb isc isi isr iss isu iu- iua iub iuc iui iur ius ra- raa rab rac rai rar ras rau rba rbb rbc rbi rbr rbs rbu rca rcb rcc rci rcr rcs rcu ria rib ric rii rir ris rra rrb rrc rri rrr rrs rru rsa rsb rsc rsi rsr rss rsu rua rub ruc rui rur rus ruu saa sab sac sai sar sas sau sba sbb sbc sbi sbr sbs sbu sca scb scc sci scr scs scu sia sib sic sii sir sis siu sr- sra srb src sri srr srs ss- ssa ssb ssc ssi ssr sss ssu sua sub suc sui sur sus suu ua- uaa uab uac uai uar uas uau uba ubb ubc ubi ubr ubs ubu uca ucb ucc uci ucr ucs ucu uia uib uic uii uir uis uiu ur- ura urb urc uri urr urs uru usa usb usc usi usr uss usu uua uuc 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 abai abar abas abau abb- abba abbb abbi abbr abbs abca abcb abcc abci abcr abcs abia abib abic abir abis abiu abra abrc abri abrs abs- absa absi abss absu abua abus acaa acab acac acai acar acas acba acca accc acci accs accu aci- acia acic acir acis acr- acra acrc acri acrr acrs acsa acsc acsi acss acu- acur acus aiai aias aiba aica aicc aicr aics aiia aiib aiic aiir aira airi airs aisa aisb aisi aisr aiui arab arac arai arar aras arau arba arbi arbs arc- arca arci arcs aria arib arii aris arr- arra arrc arri arrr arrs arru ars- arsa arsc arsi arsu arua arub arui asaa asab asac asai asar asas asau asba asbu asc- asca ascb ascc asci ascr asia asic asii asir asis asra asrc asrs asru assa assc assi assr asss assu asub asui asur asus auaa auca auci auis aur- aura auri ausa ausu ba-i baaa baar baas baba babb babi babr babs babu bac- baca bacc baci bacs baia baib baic bair bais bar- bara barb barc bari barr bars baru basa basc basi bass basu bau- baur bbas bbau bbbb bbbs bbci bbrc bcaa bcar bcas bcbc bcbs bcca bccc bcci bccs bcia bcis bcra bcrs bcru bcsa bcsc bcss bcuc biar bias biba bibb bibi bibs bica bicc bici bics biis bira birb biri birr birs biru bis- bisa bisc biss bisu brab brac brai bras brau brca brcb bria bric bris brrr brrs brsb brsr bruc brus bsaa bsac bsas bsci bscs bsic bsra bssc buar buba bubb bubi bubs bubu buca bucc buci bucs bucu buic buir buis buiu bur- bura burb buri burr burs buru busa busc busi buss busu buus caaa caab caac caas caba cabi cabs cabu cac- caca cacc caci cacr 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 cbia cbir cbsa cbsc cbsi cbus ccaa ccab ccac ccai ccar ccas ccba ccbc ccca cccb cccc ccci cccs cccu ccic ccii ccir ccis ccra ccrc ccri ccrs ccsa ccsi ccss ccuc ccus ciaa ciar cias ciau ciba cibc cibi cica cicc cici cicr cics cicu ciia ciii ciis cira cirb circ ciri cirr cirs cis- cisa cisc cisr ciss ciuc cius crab crac crai crar cras crau crbc crbu crca crcc crcr cria crib cric cris criu crsa crss crub crus csaa csab csac csar csas cscb cscc csci cscr cscs csia csib csir csis csra csrc csrs cssa cssr csua csur csus cuau cub- cuba cubb cubi cubs cuca cucc cuci cui- cuir cuis cura curb curi curr curs cusa cusb cuss cusu iaaa iaac iaai iaas iaba iaca iacc iacr iacs iacu iaia iais iara iarc iars iaru iasa iasc iasi iasr ibac ibar ibas ibca ibcs ibia ibis ibra ibrc ibri ibsa ibss ibus icaa icab icac icai icar icas icbc icbs icca iccb iccc icci iccr iccs iccu icis icra icrc icrr icrs icru icsa icsb icsc icsi icsr icss icub icus iiac iias iica iiii iiis iira iirc iirs iisc iisi iisr iisu iiuc irac irai irar iras irca ircc ircs ircu iri- iria iric iris irra irrc irri irrs irsa irus is-a isac isai isar isas isba isca iscc isci iscr iscs iscu isia isic isis isra isri issa issc issi issr isss issu isua isus iucc iuiu iura iuss raab raas raba rabb rabi rabs rabu rac- raca racc raci racs racu raia raic raii rair rais raiu rara rarb rari rars rasa