c-cd cccc cccf ccci ccdc ccdf ccdi ccfc ccfd ccff ccfi ccic ccid ccii cdic cdii cfcf cicc cici cidc cidi ciff ciid ciii ckck ckfi dccc dcci dcfc dcii dddd dfcc dici dick didi dif- diff diii diki dkdc dkid f--k fccf fcic fcii fdic ffcc ffff ffii ficc fick fidc fidf fifc fiff fifi fiii fiki iccc iccf icci icdc icdd idfc idic idid ifcd ific ifid iicd iiii ikid ikki k-ci k-id kccc kccd kcci kcck kcdc kcdd kcdi kcfc kcfd kcfi kcic kcid kcif kcii kckc kckf kckk kdcc kdcd kddc kddd kddf kddi kddk kdfc kdfi kdic kdkd kdkk kfcd kfcf kfff kffk kicc kicd kick kidd kidi kidk kiff kiic kiid kiii kiik kikc kikd kikf kiki kikk kkcd kkci kkck kkdc kkdd kkfi kkic kkid kkik kkkk