a-ii aaaa aaac aaae aaai aaar aaca aacc aace aaci aacr aaea aaec aaic aaii aara aarc aare aari acaa acac acae acai acar acca accc acce acci ace- acea acec acer aci- acia acic acie acir acr- acra acrc acre acri acrr aeac aeci aeer aer- aera aerc aeri aiai aica aicc aice aicr aiea aiee aiia aiic aiir aira aire airi arac arae arai arar arc- arca arce arci area arec aree arei aria arie arii arr- arra arrc arre arri arrr caaa caac cac- caca cacc cace caci cacr caec caei caer caia caic cair cara carc care cari carr ccaa ccac ccai ccar ccca cccc ccci ccee ccic ccii ccir ccra ccrc ccre ccri ceac cear cec- ceca cece ceci ceec cer- cera cerc cere ceri ciaa ciar cica cicc cici cicr ciee cier ciia ciii cira circ cire ciri cirr crac crai crar crca crcc crce crcr cre- crea crec cree crei cria cric crie eaca eacc eaec eara eare ecaa ecac ecai ecar ecca eccc ecce ecci ecra ecrc ecri ecrr eeca eeea eeee eera eerc eica eiec eiei eier eira eire erca ercc erce erec erei erer eria eric erie erra errc erre iaaa iaac iaai iaca iacc iacr iaea iaec iaia iara iarc iare icaa icac icai icar icca iccc icci iccr icea icec icee icer icra icrc icre icrr ieac iecc ieie iera iere ieri iiac iica iiie iiii iira iirc irac irae irai irar irca ircc iree irer iri- iria iric irie irra irrc irre irri rac- raca racc race raci raec raer raia raic raie raii rair rara rare rari rcac rccc rcic rea- reac reae rear reca recc rece reci recr reia reii reir rera rere reri riaa riai rica ricc rice rier riia rire riri rrrr