-ic a-a a-b a-c a-i aaa aab aac aag aai aao aar ab- aba abb abc abg abi abo abr ac- aca acb acc acg aci aco acr ag- aga agb agc agg agi ago agr ai- aia aib aic aig aii aio air aoa aob aoc aog aoi aoo aor ar- ara arb arc arg ari aro arr baa bab bac bag bai bao bar bba bbb bbc bbg bbi bbo bbr bca bcb bcc bcg bci bco bcr bga bgb bgc bgg bgi bgo bgr bi- bia bib bic big bii bio bir boa bob boc bog boi boo bor bra brb brg bri bro brr c-- caa cab cac cag cai cao car cba cbb cbc cbg cbi cbo cbr cca ccb ccc ccg cci cco ccr cga cgb cgc cgg cgi cgo cgr ci- cia cib cic cig cii cio cir co- coa cob coc cog coi coo cor cra crb crc crg cri cro crr gaa gab gac gag gai gao gar gba gbc gbg gbi gbo gbr gca gcb gcc gcg gci gco gcr gga ggb ggc ggg ggi ggo ggr gia gib gic gig gii gio gir goa gob goc gog goi goo gor gra grb grc grg gri gro grr ia- iaa iab iac iag iai iao iar iba ibb ibc ibg ibi ibo ibr ica icb icc icg ici ico icr iga igb igc igg igi igo igr iia iib iic iii iio iir io- ioa iob ioc iog ioi ioo ior ir- ira irb irc irg iri iro irr o-i oaa oab oac oag oai oao oar ob- oba obb obc obg obi obo obr oc- oca ocb occ ocg oci oco ocr oga ogc ogg ogi ogo oia oib oic oii oio oir oo- ooa oob ooc oog ooi ooo oor or- ora orb orc org ori oro orr ra- raa rab rac rag rai rao rar rba rbb rbc rbg rbi rbo rbr rca rcb rcc rcg rci rco rcr rga rgb rgc rgg rgi rgo rgr ria rib ric rig rii rio rir roa rob roc rog roi roo ror rra rrb rrc rrg rri rrr

a-ii aaaa aaab aaac aaai aaar aaba aabb aabc aabi aaca aacb aacc aaci aaco aacr aaib aaic aaii aaoo aara aarc aari aaro abaa abab abac abag abai abar abb- abba abbb abbi abbo abbr abca abcb abcc abci abcr abia abib abic abig abir aboa abob aboo abor abra abrc abri abro acaa acab acac acag acai acar acba acca accc acci acco acga acgi acgr aci- acia acic acir acoa acog acor acr- acra acrc acri acro acrr ag-o agac agag agai agao agar agba agbo agca agcc agco agga aggi agia agib agic agig agii agio agir agob agog agoo agra agri agro aiai aiba aibo aica aicc aicr aiga aigo aiia aiib aiic aiir aioc aioi aira airi airo aoba aoca aora aorb arab arac arag arai arar arba arbi arc- arca arci arco arga argb argi argo aria arib arig arii ario aroa arob aroi aroo aror arr- arra arrc arrg arri arro arrr ba-i baaa baar baba babb babi babo babr bac- baca bacc baci baco baga bagg bagi bago baia baib baic baig baio bair bar- bara barb barc barg bari baro barr bbbb bbci bbga bbrc bbrg bcaa bcar bcbc bcbg bcca bccc bcci bcia bcor bcra bgca bgia biao biar biba bibb bibi bibo bica bicc bicg bici bico biga bigb bigc bigg bigo bio- bioc biog bioi bira birb birg biri biro birr boab boac boag boai boar boba bobb bobi bobo boca boco boga bogg bogi bogo boi- boii boob booc boog boor bor- bora borg bori boro borr brab brac brag brai brao brca brcb bria bric brig brio broa brob broc brog broo bror brrr c-bo caaa caab caac caba cabg cabi cabo cac- caca cacc caci caco cacr caga cagg cagi cago cagr caia caib caic caio cair caoi caor cara carb carc cari caro carr cbac cbar cbbc cbca cbcc cbcr cbga cbgb cbia cbir ccaa ccab ccac ccag ccai ccar ccba ccbc ccca cccb cccc ccci ccga ccgc ccic ccii ccir ccob ccoc ccra ccrc ccrg ccri cgac cgcc cgcg cgro ciaa ciao ciar ciba cibc cibi cibo cica cicc cici cico cicr ciga cigi ciia ciii ciob cior cira cirb circ ciri ciro cirr coag coai coba cobb cobi cobo coca coco cogi cogo coia coir coob cor- cora corb corc corg cori coro corr crab crac crag crai crar crbc crca crcc crcr cria crib cric crig crob croc croo cror gaar gaba gabb gabi gabo gabr gaga gagg gagi gago gaia gaig gair gara garb garg gari garo garr gbag gbbo gc-c gcaa gcbc gccc gcic gcii gcoa gcrg gggg giaa giac giai giba gibb gica gicr giga gigg gigi gigo giog gioi gira girg giri giro girr goai goar goba gobi gobo goca gocr goga gogi gogo goog gooi goor gora gorb gorg gori goro gorr grab grac grai grbr grcc gria grib gric grig grob groc grog groi groo gror grrr i-go iaaa iaac iaai iaba iaca iacc iacr iago iaia iara iarc ibac ibar ibca ibga ibia ibra ibrc ibri ibro icaa icab icac icag icai icao icar icbc icca iccb iccc icci icco iccr icga icgc icoc icor icra icrc icrr igac igar igba igbc igbo igcc igga igia igoo igor igra igri iiac iica iiii iiio iioi iioo iira iirc ioba iobi iocg ioci ioii ioio iooi iooo iora iorg iori irac irai irao irar irca ircc ircg iri- iria iric irig irio irob iroc irra irrc irri oaic oara obai obba obbo obia oboi obor obra obri obro ocab ocac ocbc occa occc occi ocga ocra ocro ocrr ogai ogar ogb ogba oggi ogoa ogog ogoi ogra ogri ogro oiba oici oigo oiii oira ooaa ooba oobi oocr ooia oooo oora orab orac orai orao orar orba orbb orbi orbo orca orci orco orga orgo