-ic a-a a-b a-c a-i aaa aab aac aad aai aak aar aau ab- aba abb abc abd abi abk abr abu ac- aca acb acc acd aci ack acr acu ad- ada adb adc add adi adk adr adu ai- aia aib aic aid aii aik air aiu aka akb akc akd aki akk akr aku ar- ara arb arc ard ari ark arr aru au- aua aub auc aud aui auk aur b-u baa bab bac bad bai bak bar bau bba bbb bbc bbd bbi bbk bbr bbu bca bcb bcc bcd bci bck bcr bcu bda bdb bdc bdd bdi bdk bdr bdu bi- bia bib bic bid bii bik bir biu bka bkb bkc bkk bkr bra brb brd bri brk brr bru bua bub buc bud bui buk bur buu c-- caa cab cac cad cai cak car cau cba cbb cbc cbd cbi cbk cbr cbu cca ccb ccc ccd cci cck ccr ccu cda cdb cdc cdd cdi cdk cdr cdu ci- cia cib cic cid cii cik cir ciu cka ckb ckc ckd cki cra crb crc crd cri crk crr cru cua cub cuc cud cui cuk cur cuu daa dab dac dad dai dak dar dau dba dbb dbc dbd dbi dbk dbr dbu dca dcb dcc dcd dci dck dcr dcu dda ddb ddc ddd ddi ddk ddr ddu di- dia dib dic did dii dik dir diu dka dkb dkc dki dkk dkr dku dra drb drc drd dri drk drr dru dua dub duc dud dui duk dur i-d ia- iaa iab iac iad iai iar iau iba ibb ibc ibd ibi ibk ibr ibu ica icb icc icd ici ick icr icu ida idb idc idd idi idk idr idu iia iib iic iid iii iir iiu ika ikb ikc iki ikk ikr iku ir- ira irb irc ird iri irk irr iru iu- iua iub iuc iud iui iur ka- kaa kab kac kad kai kak kar kau kba kbb kbc kbd kbi kbk kbr kbu kca kcb kcc kcd kci kck kcr kcu kda kdb kdc kdk kdr kdu kia kib kic kid kii kik kir kiu kkb kkc kki kkk kkr kku kra krc krd kri krk krr kru kub kuc kud kui kuk kur kuu ra- raa rab rac rad rai rak rar rau rba rbb rbc rbd rbi rbk rbr rbu rca rcb rcc rcd rci rcr rcu rda rdb rdc rdd rdi rdr rdu ria rib ric rid rii rik rir rkb rkc rkk rku rra rrb rrc rrd rri rrk rrr rru rua rub ruc rud rui ruk rur ruu ua- uaa uab uac uad uai uak uar uau uba ubb ubc ubi ubk ubr ubu uca ucb ucc ucd uci uck ucr ucu uda udb udc udd udi udk udr udu uia uib uic uid uii uir uiu uka ukb ukc uki ukk ukr uku ur- ura urb urc urd uri urk urr uru uua uuc uur uuu

a-ak a-ii aaaa aaab aaac aaad aaai aaar aaba aabb aabc aabd aabi aaca aacb aacc aacd aaci aack aacr aacu aada aadc aadi aadu aaib aaic aaii aaka aaku aara aarc aard aari aaru abaa abab abac abad abai abak 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 abuk acaa acab acac acad acai acar acba acca accc accd acci accu acda acdb acdc acdi aci- acia acic acid acir ackd acr- acra acrc acri acrr acu- acur adaa adab adac adad adai adak adar adba adbc adbi adcc adci adda addc addd addi addr addu adia adib adic adik adir adki adra adua adub aduk adur aiai aiba aica aicc aicd aicr aida aidb aidc aidi aidr aidu aiia aiib aiic aiid aiir aika aiki aira aird airi aiud aiui akaa akai akar akca akia akid akik akir akiu akka akki akku akr- akra akua arab arac arad arai arak arar arau arba arbi arc- arca arci arda ardc ardi ardu aria arib arid arii arik arka arki arr- arra arrc arri arrk arrr arru arua arub arud arui auaa auca auci audc audi auki aur- aura aurd auri ba-i baaa baad baak baar baba babb babi babr babu bac- baca bacc baci back bada badb badd badi badr badu baia baib baic baid baik bair bak- baka baki bakr baku bar- bara barb barc bard bari bark barr baru bau- baud bauk baur bbad bbau bbbb bbci bbdd bbrc bcaa bcar bcbc bcca bccc bcci bcda bcia bcra bcru bcuc bd-r bdbc bddc bdii biad biak biar biba bibb bibi bica bicc bici bick bida bidi bidr bidu biku bira birb bird biri birk birr biru brab brac brad brai brak brau brca brcb brda bria bric brid brik brka brkb brrr bruc brud buad buar buba bubb bubi bubu buca bucc buci buck bucu buda budb budd budi budu buic buid buik buir buiu buka buki bukk buku bur- bura burb burd buri burk burr buru c-cd caaa caab caac caba cabi cabu cac- caca cacc caci cack cacr cada cadc cadd cadi cadr cadu caia caib caic caid caik cair caiu caka cara carb carc card cari cark carr cauc cauk cbac cbar cbbc cbca cbcc cbcr cbcu cbdb cbdc cbdi cbia cbid cbir cbka cbkr 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 ciak ciar ciau ciba cibc cibi cica cicc cici cicr cicu cida cidc cidi cidr ciia ciid ciii cika cikr cira cirb circ ciri cirk cirr ciuc ckac ckbc ckbi ckck ckdu ckrc ckrd crab crac crai crar crau crbc crbu crca crcc crcr crda crdc cria crib cric crik criu crkc crub crud cruk cuau cub- cuba cubb cubi cuca cucc