-vac a-do a-ii a-iv aaaa aaab aaac aaad aaai aaav aaba aabb aabc aabd aabi aaca aacb aacc aacd aaci aaco aacv aada aadc aadi aaib aaic aaii aaoo aava abaa abab abac abad abai abb- abba abbb abbi abbo abca abcb abcc abcd abci abda abdi abdo abia abib abic abid aboa abob abod aboo abov abva abvd acaa acab acac acad acai acba acca accc accd acci acco acda acdb acdc acdi aci- acia acic acid acoa acod acvv adaa adab adac adad adai adao adba adbc adbi adcc adci adda addc addd addi addo adia adib adic adio adob adoc adod adoo advb advi aiai aiba aibo aica aicc aicd aida aidb aidc aidi aiia aiib aiic aiid aioc aioi aiva aivd aoba aoca avab avao avcc avco avda avdi avia avic avid avio aviv avva avvo ba-i baaa baad baba babb babi babo bac- baca bacc baci baco bada badb badd badi bado baia baib baic baid baio bava bavi bbad bbbb bbci bbdd bbdo bcaa bcbc bcca bccc bcci bcda bcia bcvo bdav bdbc bddc bdii biad biao biba bibb bibi bibo bica bicc bici bico bida bidi bido bio- bioc bioi bivi boab boac boad boai boba bobb bobi bobo boca boco boda bodb bodi bodo boi- boid boii boob booc bood bova bovi bovo c-bo c-cd caaa caab caac caba cabi cabo cac- caca cacc caci caco cada cadc cadd cadi cado caia caib caic caid caio caod caoi cava cavi cavo cbac cbbc cbca cbcc cbdb cbdc cbdi cbdo cbia cbid cbva cbvb ccaa ccab ccac ccad ccai ccba ccbc ccca cccb cccc ccci cccv ccdc ccdi ccic ccid ccii cciv ccob ccoc ccod ccvi ccvo cdaa cdac cdad cdai cdba cdda cddb cdic cdii cdio cdiv cdvd cdvi ciaa ciao ciba cibc cibi cibo cica cicc cici cico cida cidc cidi ciia ciid ciii ciob civa civc civo coad coai coba cobb cobi cobo coca coco coda codd codi coia coob cood cova covo cvac cvca cvcc cvid cvii d-bo daab daad daba dabb dabo daca daci dada dadi dado daia daid daio dava davi dbcc dcbc dcca dccb dccc dcci dccv dcdb dcia dcii dcio dciv dcvd dcvi dddd ddoc dia- diab diac diad diao diba dibb dibo dica dici dico dida didi dido diii diiv dioc diva divd divi divo doab doba dobb dobi doca doci doco dod- doda dodd dodi dodo doid doob dood dovi dvda dvi- dvii dvoa iaaa iaac iaai iaba iaca iacc iadb iadc iaia iava ibac ibad ibca ibdo ibia ibid icaa icab icac icad icai icao icbc icbd icca iccb iccc icci icco icdc icdd icoc icod idad idca idda iddo idia idic idid idio idoc idvd iiac iica iicd iida iiii iiio iioi iioo ioba iobi ioci iod- ioda iodd iodo ioii ioio iooi iooo ivai ivao ivbv ivda ivic ivod oaic obad obai obba obbo obia obid oboi obvi ocab ocac ocad ocbc occa occc occi odac odai odbo odci odda oddd oddi odia odic odio odoo odva oiav oiba oici oido oiii ooaa ooba oobi ooda oodi ooia ooid oooo ovda ovi- ovid ovo- ovod ovoo vaad vaca vaco vada vadi vado vaia vaid vaio vava vbcc vcbi vcci vdcc vdio viad vic- vica vici vico vida vidi vido viii viva vivi vivo voad voca voda vodo voia voic void voio vooc vvob vvvv