-ic c-- ccc ccd cci cck ccn cdc cdd cdi cdk cdn ci- cic cid cii cik cin ckc ckd cki cn- cnc cnd cni cnn dcc dcd dci dck dcn ddc ddd ddi ddk ddn di- dic did dii dik din dkc dki dkk dnc dnd dni dnk dnn i-d icc icd ici ick icn idc idd idi idk idn iic iid iii iin ikc iki ikk in- inc ind ini ink inn kcc kcd kci kck kcn kdc kdk kic kid kii kik kin kkc kki kkk kkn kn- knc knd kni knk knn n-i ncc ncd nci nck ncn ndc ndd ndi ndk ndn nic nid nii nik nin nkc nki nkk nkn nnc nni nnk nnn