a-ii aaaa aaab aaac aaad aaai aaba aabb aabc aabd aabi aaca aacb aacc aacd aaci aada aadc aadi aaib aaic aaii abaa abab abac abad abai abaj abb- abba abbb abbi abca abcb abcc abcd abci abda abdi abia abib abic abid acaa acab acac acad acai acba acca accc accd acci acda acdb acdc acdi aci- acia acic acid adaa adab adac adad adai adba adbc adbi adcc adci adda addc addd addi adia adib adic adja adji aiai aiba aica aicc aicd aida aidb aidc aidi aiia aiib aiic aiid aija ajab ajac ajba ba-i baaa baad baba babb babi bac- baca bacc baci bada badb badd badi baia baib baic baid baja baji bbad bbbb bbci bbdd bcaa bcbc bcca bccc bcci bcda bcia bd-j bdbc bddc bdii biad biaj biba bibb bibi bica bicc bici bida bidi bija biji bjcc c-cd caaa caab caac caba cabi cac- caca cacc caci cada cadc cadd cadi caia caib caic caid caja caji cbac cbbc cbca cbcc cbdb cbdc cbdi cbia cbid ccaa ccab ccac ccad ccai ccba ccbc ccca cccb cccc ccci ccdc ccdi ccic ccid ccii cdaa cdac cdad cdai cdba cdda cddb cdic cdii ciaa ciba cibc cibi cica cicc cici cida cidc cidi ciia ciid ciii cjad cjbc cjca cjcb cjcj cjdc cjic daab daad daba dabb daca daci dada dadi daia daid daja dajc daji dbcc dcbc dcca dccb dccc dcci dcdb dcia dcii dddd dia- diab diac diad diba dibb dica dici dida didi didj diii dija djia iaaa iaac iaai iaba iaca iacc iadb iadc iaia ibac ibad ibca ibia ibid icaa icab icac icad icai icbc icbd icca iccb iccc icci icdc icdd idad idca idda idia idic idid idja idjc iiac iica iicd iida iiii ijdb ijji jaba jabi jaca jacc jaci jada jaid jaja jaji jbaa jcbc jccc jcci jcda jibb jibi jida jidi jiji jjad jjcc