-ic a-a a-b a-c a-i aaa aab aac aad aai aar aau ab- aba abb abc abd abi abr abu ac- aca acb acc acd aci acr acu ad- ada adb adc add adi adr adu ai- aia aib aic aid aii air aiu ar- ara arb arc ard ari arr aru au- aua aub auc aud aui aur b-u baa bab bac bad bai bar bau bba bbb bbc bbd bbi bbr bbu bca bcb bcc bcd bci bcr bcu bda bdb bdc bdd bdi bdr bdu bi- bia bib bic bid bii bir biu bra brb brd bri brr bru bua bub buc bud bui bur buu c-- caa cab cac cad cai car cau cba cbb cbc cbd cbi cbr cbu cca ccb ccc ccd cci ccr ccu cda cdb cdc cdd cdi cdr cdu ci- cia cib cic cid cii cir ciu cra crb crc crd cri crr cru cua cub cuc cud cui cur cuu daa dab dac dad dai dar dau dba dbb dbc dbd dbi dbr dbu dca dcb dcc dcd dci dcr dcu dda ddb ddc ddd ddi ddr ddu di- dia dib dic did dii dir diu dra drb drc drd dri drr dru dua dub duc dud dui dur i-d ia- iaa iab iac iad iai iar iau iba ibb ibc ibd ibi ibr ibu ica icb icc icd ici icr icu ida idb idc idd idi idr idu iia iib iic iid iii iir iiu ir- ira irb irc ird iri irr iru iu- iua iub iuc iud iui iur ra- raa rab rac rad rai rar rau rba rbb rbc rbd rbi rbr rbu rca rcb rcc rcd rci rcr rcu rda rdb rdc rdd rdi rdr rdu ria rib ric rid rii rir rra rrb rrc rrd rri rrr rru rua rub ruc rud rui rur ruu ua- uaa uab uac uad uai uar uau uba ubb ubc ubi ubr ubu uca ucb ucc ucd uci ucr ucu uda udb udc udd udi udr udu uia uib uic uid uii uir uiu ur- ura urb urc urd uri urr uru uua uuc uur uuu

a-ii aaaa aaab aaac aaad aaai aaar aaba aabb aabc aabd aabi aaca aacb aacc aacd aaci aacr aacu aada aadc aadi aadu aaib aaic aaii aara aarc aard aari aaru abaa abab abac abad abai abar abau abb- abba abbb abbi abbr abca abcb abcc abcd abci abcr abda abdi abdu abia abib abic abid abir abiu abra abrc abri abua abud acaa acab acac acad acai acar acba acca accc accd acci accu acda acdb acdc acdi aci- acia acic acid acir acr- acra acrc acri acrr acu- acur adaa adab adac adad adai adar adba adbc adbi adcc adci adda addc addd addi addr addu adia adib adic adir adra adua adub adur aiai aiba aica aicc aicd aicr aida aidb aidc aidi aidr aidu aiia aiib aiic aiid aiir aira aird airi aiud aiui arab arac arad arai arar arau arba arbi arc- arca arci arda ardc ardi ardu aria arib arid arii arr- arra arrc arri arrr arru arua arub arud arui auaa auca auci audc audi aur- aura aurd auri ba-i baaa baad baar baba babb babi babr babu bac- baca bacc baci bada badb badd badi badr badu baia baib baic baid bair bar- bara barb barc bard bari barr baru bau- baud baur bbad bbau bbbb bbci bbdd bbrc bcaa bcar bcbc bcca bccc bcci bcda bcia bcra bcru bcuc bd-r bdbc bddc bdii biad biar biba bibb bibi bica bicc bici bida bidi bidr bidu bira birb bird biri birr biru brab brac brad brai brau brca brcb brda bria bric brid brrr bruc brud buad buar buba bubb bubi bubu buca bucc buci bucu buda budb budd budi budu buic buid buir buiu bur- bura burb burd buri burr buru c-cd caaa caab caac caba cabi cabu cac- caca cacc caci cacr cada cadc cadd cadi cadr cadu caia caib caic caid cair caiu cara carb carc card cari carr cauc cbac cbar cbbc cbca cbcc cbcr cbcu cbdb cbdc cbdi cbia cbid cbir cbrd ccaa ccab ccac ccad ccai ccar ccba ccbc ccca cccb cccc ccci cccu ccdc ccdi ccdr ccic ccid ccii ccir ccra ccrc ccri ccuc cd-r cdaa cdac cdad cdai cdba cdda cddb cddr cdic cdii ciaa ciar ciau ciba cibc cibi cica cicc cici cicr cicu cida cidc cidi cidr ciia ciid ciii cira cirb circ ciri cirr ciuc crab crac crai crar crau crbc crbu crca crcc crcr crda crdc cria crib cric criu crub crud cuau cub- cuba cubb cubi cuca cucc cuci cuda cudi cui- cuir cura curb curd curi curr daab daad daar daau daba dabb dabu daca daci dada dadi dadu daia daid dair dara darb darc dard dari darr daru daub daud daur dbar dbcc dcbc dcca dccb dccc dcci dccu dcdb dcia dcii dcra dddd ddrc ddub dia- diab diac diad diar diba dibb dica dici dida didi didu diii dira dird dirr draa drab drac drad drar drau drba drbc drca drda drib dric drra drua drub drui druu duaa duab duad duar dub- duba dubb dubc dubu duca duda dudd dudu duid duir dura duri duru duur iaaa iaac iaai iaba iaca iacc iacr iacu iadb iadc iaia iara iarc iaru ibac ibad ibar ibca ibia ibid ibra ibrc ibrd ibri icaa icab icac icad icai icar icbc icbd icca iccb iccc icci iccr iccu icdc icdd icra icrc icrr icru icub idad idar idca idcr idda idia idic idid idir idra idrc idub iiac iica iicd iida iiii iira iirc iiuc irac irad irai irar irca ircc ircd ircu irda irdc iri- iria iric irid irra irrc irri iucc iuiu iura raab raad raba rabb rabi rabu rac- raca racc raci racu rada radc radd radr radu raia raic raid raii rair raiu rara rarb rari raua raub rauc raud rbbb rbbr rcac rcbc rccb rccc rcdc rcic