a-ii aaaa aaac aaad aaae aaaf aaai aaca aacc aacd aace aacf aaci aada aadc aade aadi aaea aaec aafa aafc aafd aaff aafi aaic aaii acaa acac acad acae acai acca accc accd acce accf acci acda acdc acde acdf acdi ace- acea acec aced acfc acfd acfe acfi aci- acia acic acid acie acif adaa adac adad adae adai adcc adci adda addc addd adde addi adea adee adfa adfc adia adic adie adif aeac aeaf aeci aede afaa afad afca afcc afci afdc afee affa affc affi afia afid afif aiai aica aicc aicd aice aicf aida aidc aide aidi aiea aiee aifd aiff aiia aiic aiid c-cd caaa caac caaf cac- caca cacc cace caci cada cadc cadd cade cadi caec caei cafa cafc cafe caff caia caic caid ccaa ccac ccad ccaf ccai ccca cccc cccf ccci ccdc ccdf ccdi cced ccee ccfa ccfc ccfd ccff ccfi ccic ccid ccii cd-e cdaa cdac cdad cdai cdda cdec cdef cdfa cdfe cdic cdii ceac cead cec- ceca cece ceci ceda cedd cede cedi ceec cef- cefa cefc cfaa cfac cfae cfca cfcf cfda cfia ciaa cica cicc cici cida cidc cide cidi ciee cifa cife ciff ciia ciid ciii daad daae daca dace daci dada dade dadi dafa dafc dafe daff dafi daia daid daie dcca dccc dcci dcfc dcia dcii dddd ddie deac dead deae deaf dec- deca decc decd dece deci deda dedd dede dedi deed deef defe deff defi deid deie deif dfaf dfcc dffa dia- diac diad diaf dica dice dici dida dide didi diea died dief dif- difa diff diii eaaf eaca eacc eada eadd eadi eaec eaif ecaa ecac ecad ecai ecca eccc ecce ecci ecdc ecdf eced ecef ecfa ecfc edac edad edca edda eddc edde eddi ede- edea edei edfa edia edie edif eeca eede eeea eeee eefa eefe efca efda effa effi efic eica eid- eide eidi eiec eied eiei faaa faac faad faca facc face fada fadd fade fadi fafa fafc fafe faff fafi faid faie fcca fccf fcda fcic fcii fdca fdic fead feaf fece feda fede fedi feed fefc fefe feff fefi feia feid feie ffcc ffee ffff ffii fiaa fiac fiad fiaf fica ficc fice fida fidc fide fidf fiec fief fifa fifc fife fiff fifi fiii iaaa iaac iaai iaca iacc iadc iaea iaec iafc iafe iaff iaia icaa icac icad icaf icai icca iccc iccf icci icdc icdd icde icea icec iced icee icef idad idae idca idce idda idea idec ided idee idef idfa idfc idia idic idid idie ieac iecc ieie ifaa ifac ifae ifcd ifda ific ifid iiac iica iicd iida iide iied iifa iiie iiii