-ic a-a a-b a-c a-i aaa aab aac aad aai aao aar ab- aba abb abc abd abi abo abr ac- aca acb acc acd aci aco acr ad- ada adb adc add adi ado adr ai- aia aib aic aid aii aio air aoa aob aoc aod aoi aoo aor ar- ara arb arc ard ari aro arr baa bab bac bad bai bao bar bba bbb bbc bbd bbi bbo bbr bca bcb bcc bcd bci bco bcr bda bdb bdc bdd bdi bdo bdr bi- bia bib bic bid bii bio bir boa bob boc bod boi boo bor bra brb brd bri bro brr c-- caa cab cac cad cai cao car cba cbb cbc cbd cbi cbo cbr cca ccb ccc ccd cci cco ccr cda cdb cdc cdd cdi cdo cdr ci- cia cib cic cid cii cio cir co- coa cob coc cod coi coo cor cra crb crc crd cri cro crr daa dab dac dad dai dao dar dba dbb dbc dbd dbi dbo dbr dca dcb dcc dcd dci dco dcr dda ddb ddc ddd ddi ddo ddr di- dia dib dic did dii dio dir doa dob doc dod doi doo dor dra drb drc drd dri dro drr i-d ia- iaa iab iac iad iai iao iar iba ibb ibc ibd ibi ibo ibr ica icb icc icd ici ico icr ida idb idc idd idi ido idr iia iib iic iid iii iio iir io- ioa iob ioc iod ioi ioo ior ir- ira irb irc ird iri iro irr o-i oaa oab oac oad oai oao oar ob- oba obb obc obd obi obo obr oc- oca ocb occ ocd oci oco ocr oda odb odc odd odi odo odr oia oib oic oid oii oio oir oo- ooa oob ooc ood ooi ooo oor or- ora orb orc ord ori oro orr ra- raa rab rac rad rai rao rar rba rbb rbc rbd rbi rbo rbr rca rcb rcc rcd rci rco rcr rda rdb rdc rdd rdi rdo rdr ria rib ric rid rii rio rir roa rob roc rod roi roo ror rra rrb rrc rrd rri rrr

a-do a-ii aaaa aaab aaac aaad aaai aaar aaba aabb aabc aabd aabi aaca aacb aacc aacd aaci aaco aacr aada aadc aadi aaib aaic aaii aaoo aara aarc aard aari aaro abaa abab abac abad abai abar abb- abba abbb abbi abbo abbr abca abcb abcc abcd abci abcr abda abdi abdo abia abib abic abid abir aboa abob abod aboo abor abra abrc abri abro acaa acab acac acad acai acar acba acca accc accd acci acco acda acdb acdc acdi aci- acia acic acid acir acoa acod acor acr- acra acrc acri acro acrr adaa adab adac adad adai adao adar adba adbc adbi adcc adci adda addc addd addi addo addr adia adib adic adio adir adob adoc adod adoo ador adra adro aiai aiba aibo aica aicc aicd aicr aida aidb aidc aidi aidr aiia aiib aiic aiid aiir aioc aioi aira aird airi airo aoba aoca aora aorb arab arac arad arai arar arba arbi arc- arca arci arco arda ardc ardi ardo aria arib arid arii ario aroa arob arod aroi aroo aror arr- arra arrc arri arro arrr ba-i baaa baad baar baba babb babi babo babr bac- baca bacc baci baco bada badb badd badi bado badr baia baib baic baid baio bair bar- bara barb barc bard bari baro barr bbad bbbb bbci bbdd bbdo bbrc bcaa bcar bcbc bcca bccc bcci bcda bcia bcor bcra bd-r bdbc bddc bdii biad biao biar biba bibb bibi bibo bica bicc bici bico bida bidi bido bidr bio- bioc bioi bira birb bird biri biro birr boab boac boad boai boar boba bobb bobi bobo boca boco boda bodb bodi bodo boi- boid boii boob booc bood boor bor- bora bord bori boro borr brab brac brad brai brao brca brcb brda brdo bria bric brid brio broa brob broc brod broo bror brrr c-bo c-cd caaa caab caac caba cabi cabo cac- caca cacc caci caco cacr cada cadc cadd cadi cado cadr caia caib caic caid caio cair caod caoi caor cara carb carc card cari caro carr cbac cbar cbbc cbca cbcc cbcr cbdb cbdc cbdi cbdo cbia cbid cbir cbrd ccaa ccab ccac ccad ccai ccar ccba ccbc ccca cccb cccc ccci ccdc ccdi ccdr ccic ccid ccii ccir ccob ccoc ccod ccra ccrc ccri cd-r cdaa cdac cdad cdai cdba cdda cddb cddr cdic cdii cdio ciaa ciao ciar ciba cibc cibi cibo cica cicc cici cico cicr cida cidc cidi cidr ciia ciid ciii ciob cior cira cirb circ ciri ciro cirr coad coai coba cobb cobi cobo coca coco coda codd codi coia coir coob cood cor- cora corb corc cord cori coro corr crab crac crai crar crbc crca crcc crcr crda crdc cria crib cric crob croc crod croo cror d-bo daab daad daar daba dabb dabo daca daci dada dadi dado daia daid daio dair dara darb darc dard dari daro darr dbar dbcc dcbc dcca dccb dccc dcci dcdb dcia dcii dcio dcra dddd ddoc ddrc dia- diab diac diad diao diar diba dibb dibo dica dici dico dida didi dido diii dioc dior dira dird dirr doab doar doba dobb dobi doca doci doco dod- doda dodd dodi dodo doid doob dood door dora dorc dord dori doro dorr draa drab drac drad drar drba drbc drca drda drib dric drob drod drra iaaa iaac iaai iaba iaca iacc iacr iadb iadc iaia iara iarc ibac ibad ibar ibca ibdo ibia ibid ibra ibrc ibrd ibri ibro icaa icab icac icad icai icao icar icbc icbd icca iccb iccc icci icco iccr icdc icdd icoc icod icor icra icrc icrr idad idar idca idcr idda iddo idia idic idid idio idir idoc idra idrc idro iiac iica iicd iida iiii iiio iioi iioo iira