-vac a-ii a-iv aaaa aaac aaad aaai aaar aaav aaca aacc aacd aaci aacr aacv aada aadc aadi aaic aaii aara aarc aard aari aava acaa acac acad acai acar acca accc accd acci acda acdc acdi aci- acia acic acid acir acr- acra acrc acri acrr acrv acvv adaa adac adad adai adar adcc adci adda addc addd addi addr adia adic adir adra advi aiai aica aicc aicd aicr aida aidc aidi aidr aiia aiic aiid aiir aira aird airi aiva aivd arac arad arai arar arc- arca arci arda ardc ardi aria arid arii arr- arra arrc arri arrr arva arvi avar avcc avda avdi avia avic avid aviv avra avri avva c-cd caaa caac cac- caca cacc caci cacr cada cadc cadd cadi cadr caia caic caid cair cara carc card cari carr cava cavi ccaa ccac ccad ccai ccar ccca cccc ccci cccv ccdc ccdi ccdr ccic ccid ccii ccir cciv ccra ccrc ccri ccvi cd-r cdaa cdac cdad cdai cdda cddr cdic cdii cdiv cdvd cdvi ciaa ciar cica cicc cici cicr cida cidc cidi cidr ciia ciid ciii cira circ ciri cirr civa civc crac crai crar crca crcc crcr crda crdc cria cric cvac cvar cvca cvcc cvid cvii cvra cvrd cvrr daad daar daca daci dada dadi daia daid dair dara darc dard dari darr dava davi dcca dccc dcci dccv dcia dcii dciv dcra dcvd dcvi dddd ddrc dia- diac diad diar dica dici dida didi diii diiv dira dird dirr diva divd divi draa drac drad drar drca drda dric drra dvar dvda dvdr dvi- dvii dvir dvra iaaa iaac iaai iaca iacc iacr iadc iaia iara iarc iava icaa icac icad icai icar icca iccc icci iccr icdc icdd icra icrc icrr idad idar idca idcr idda idia idic idid idir idra idrc idvd iiac iica iicd iida iiii iira iirc irac irad irai irar irca ircc ircd irda irdc iri- iria iric irid irra irrc irri ivai ivar ivda ivdr ivic raad rac- raca racc raci racv rada radc radd radr raia raic raid raii rair rara rari rava ravi rcac rccc rcdc rcic rcid rcrd rcvr rdac riaa riad riai rica ricc rida ridc ridd ridi riia riri riva rrad rrrr rv-c rvca vaad vaar vaca vada vadi vaia vaid vair vara vard vari varr vava vcci vdcc viad viar vic- vica vici vida vidi viii vira virc viri virr viva vivi vrac vrai vrav vrci vrdi vria vvvv