a-ii aaaa aaac aaaf aaai aaar aaca aacc aacf aaci aacr aafa aafc aaff aafi aaic aaii aara aarc aari acaa acac acai acar acca accc accf acci acfc acfi aci- acia acic acif acir acr- acra acrc acri acrr afaa afar afca afcc afci affa affc affi afia afif afir afr- afra afrc afri aiai aica aicc aicf aicr aiff aiia aiic aiir aira airi arac araf arai arar arc- arca arci arfa arfc arff aria arif arii arr- arra arrc arri arrr caaa caac caaf cac- caca cacc caci cacr cafa cafc caff caia caic cair cara carc carf cari carr ccaa ccac ccaf ccai ccar ccca cccc cccf ccci ccfa ccfc ccff ccfi ccic ccii ccir ccra ccrc ccrf ccri cfaa cfac cfar cfca cfcf cffr cfia cfra ciaa ciar cica cicc cici cicr cifa ciff ciia ciii cira circ ciri cirr crac craf crai crar crca crcc crcr crfc cria cric crif faaa faac faca facc fafa fafc faff fafi fair fara farc farr fcar fcca fccf fcic fcii fcra ffar ffcc ffff ffii ffrr fiaa fiac fiaf fiar fica ficc fifa fifc fiff fifi fiii fira frac frcc frfc fria fric iaaa iaac iaai iaca iacc iacr iafc iaff iaia iara iarc icaa icac icaf icai icar icca iccc iccf icci iccr icra icrc icrf icrr ifaa ifac ifar ific ifra ifrf ifri iiac iica iifa iiii iira iirc irac iraf irai irar irca ircc iri- iria iric irra irrc irri raaf rac- raca racc raci rafa rafc raff rafi raia raic raif raii rair rara rarf rari rcac rcaf rccc rcfc rcic rffc rfic riaa riai rica ricc rifa riff riia riif riri rrfc rrif rrrr