c-cd cccc cccf ccdc ccdf cced ccee ccfc ccfd ccff cd-e cdec cdef cdfe cec- cece cedd cede ceec cef- cefc ceke cfcf ckck dccc dcfc dddd dec- decc decd dece deck dedd dede deed deef deek defe deff dek- deke dfcc dkdc eccc ecce ecdc ecdf eced ecef ecfc eddc edde ede- eede eeee eefe eeke efke eked ekek ekfc f--k fccf fece feck fede feed feek fefc fefe feff feke ffcc ffee ffff kccc kccd kcck kcdc kcdd kcec kced kcee kcfc kcfd kckc kckf kckk kdcc kdcd kdce kddc kddd kddf kddk kdec kdef kdfc kdkd kdkk keck kedc kedd kede keed keef keek kefc keff kekc keke kfcd kfcf kfed kfff kffk kkcd kkck kkdc kkdd kked kkkk