a-ii aaaa aaac aaad aaai aaca aacc aacd aaci aada aadc aadi aaic aaii acaa acac acad acai acca accc accd acci acda acdc acdi aci- acia acic acid adaa adac adad adai adcc adci adda addc addd addi adia adic aiai aica aicc aicd aida aidc aidi aiia aiic aiid c-cd caaa caac cac- caca cacc caci cada cadc cadd cadi caia caic caid ccaa ccac ccad ccai ccca cccc ccci ccdc ccdi ccic ccid ccii cdaa cdac cdad cdai cdda cdic cdii ciaa cica cicc cici cida cidc cidi ciia ciid ciii daad daca daci dada dadi daia daid dcca dccc dcci dcia dcii dddd dia- diac diad dica dici dida didi diii iaaa iaac iaai iaca iacc iaia icaa icac icad icai icca iccc icci icdc icdd idad idca idda idia idic idid iiac iica iicd iida iiii