-ic a-a a-b a-c a-i aaa aab aac aag aai aao aar aax ab- aba abb abc abg abi abo abr abx ac- aca acb acc acg aci aco acr acx ag- aga agb agc agg agi ago agr agx ai- aia aib aic aig aii aio air aix aoa aob aoc aog aoi aoo aor aox ar- ara arb arc arg ari aro arr arx ax- axa axi axo axr axx baa bab bac bag bai bao bar bax bba bbb bbc bbg bbi bbo bbr bbx bca bcb bcc bcg bci bco bcr bcx bga bgb bgc bgg bgi bgo bgr bgx bi- bia bib bic big bii bio bir bix boa bob boc bog boi boo bor box bra brb brg bri bro brr brx bxb bxi bxo bxx c-- caa cab cac cag cai cao car cax cba cbb cbc cbg cbi cbo cbr cbx cca ccb ccc ccg cci cco ccr ccx cga cgb cgc cgg cgi cgo cgr ci- cia cib cic cig cii cio cir cix co- coa cob coc cog coi coo cor cox cra crb crc crg cri cro crr crx cxc cxi cxo cxr cxx gaa gab gac gag gai gao gar gba gbc gbg gbi gbo gbr gbx 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 gox gra grb grc grg gri gro grr grx gxa ia- iaa iab iac iag iai iao iar iba ibb ibc ibg ibi ibo ibr ibx ica icb icc icg ici ico icr iga igb igc igg igi igo igr iia iib iic iii iio iir iix io- ioa iob ioc iog ioi ioo ior ir- ira irb irc irg iri iro irr irx ixc ixi o-i oaa oab oac oag oai oao oar oax ob- oba obb obc obg obi obo obr obx oc- oca ocb occ ocg oci oco ocr ocx oga ogc ogg ogi ogo ogx oia oib oic oii oio oir oo- ooa oob ooc oog ooi ooo oor oox or- ora orb orc org ori oro orr orx ox- oxa oxb oxc oxi oxo oxx ra- raa rab rac rag rai rao rar rax rba rbb rbc rbg rbi rbo rbr rbx rca rcb rcc rcg rci rco rcr rcx rga rgb rgc rgg rgi rgo rgr rgx ria rib ric rig rii rio rir rix roa rob roc rog roi roo ror rox rra rrb rrc rrg rri rrr rxr xaa xac xag xar xbc xbr xbx xcb xci xcr xcx xgi xia xic xii xio xix xoa xoc xog xoi xoo xor xox xrc xrx xxi xxo xxx

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 abax abb- abba abbb abbi abbo abbr abca abcb abcc abci abcr abia abib abic abig abir aboa abob aboo abor abox 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 airx aixa aixi aoba aoca aora aorb arab arac arag arai arar arax 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 axar axi- axia axo- axoa axxo ba-i ba-x baaa baar baba babb babi babo babr bac- baca bacc baci baco baga bagg bagi bago baia baib baic baig baio bair baix bar- bara barb barc barg bari baro barr barx baxi bbbb bbci bbga bbox 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 biox bira birb birg biri biro birr birx bixa bixi boab boac boag boai boar boba bobb bobi bobo boca boco boga bogg bogi bogo boi- boii boob booc boog boor boox bor- bora borg bori boro borr boxa brab brac brag brai brao brax brca brcb bria bric brig brio brix broa brob broc brog broo bror brox 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 caix caoi caor cara carb carc cari caro carr carx caxa cbac cbar cbax cbbc cbca cbcc cbcr cbga cbgb cbia cbir cbox cbxa ccaa ccab ccac ccag ccai ccar ccba ccbc ccca cccb cccc ccci ccga ccgc ccic ccii ccir ccix ccob ccoc ccra ccrc ccrg ccri ccxi 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 cixi coag coai coax coba cobb cobi cobo coca coco cogi cogo coia coir coix coob cor- cora corb corc corg cori coro corr coxa crab crac crag crai crar crax crbc crca crcc crcr cria crib cric crig crob croc croo cror cxii cxix cxro cxxi cxxx 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