a-ak aaaa aaac aaad aaae aaca aacc aacd aace aack aada aadc aade aaea aaec aaka aake acaa acac acad acae acca accc accd acce acda acdc acde ace- acea acec aced acek ackd acke adaa adac adad adae adak adcc adda addc addd adde adea adee aeac aede aeka akaa akae akca aked akee akka c-cd caaa caac cac- caca cacc cace cack cada cadc cadd cade caec caka cake ccaa ccac ccad ccca cccc ccdc cced ccee cd-e cdaa cdac cdad cdda cdec ceac cead cec- ceca cece ceda cedd cede ceec ceke ckac ckck daad daae daca dace dada dade daka dake dcca dccc dddd deac dead deae deak dec- deca decc decd dece deck deda dedd dede deed deek dek- deka deke dkdc eaca eacc eada eadd eaec ecaa ecac ecad ecca eccc ecce ecdc eced ecka edac edad edca edda eddc edde ede- edea eeca eede eeea eeee eeka eeke eka- eked ekek ekka kaaa kaak kacc kacd kace kad- kada kadd kade kaka kakc kake kakk kcaa kcac kcad kcca kccc kccd kcck kcda kcdc kcdd kcea kcec kced kcee kckc kckk kdaa kdac kdad kdae kdak kdca kdcc kdcd kdce kddc kddd kddk kdec kdka kdkd kdkk kea- kead keak keca keck keda kedc kedd kede keed keek keka kekc keke kkaa kkac kkcd kkck kkda kkdc kkdd kkea kked kkkk