-ic c-- ccc ccd cci cck ccn cco cdc cdd cdi cdk cdn cdo ci- cic cid cii cik cin cio ckc ckd cki cko cn- cnc cnd cni cnn cno co- coc cod coi cok con coo dcc dcd dci dck dcn dco ddc ddd ddi ddk ddn ddo di- dic did dii dik din dio dkc dki dkk dko dnc dnd dni dnk dnn dno doc dod doi dok don doo i-d icc icd ici ick icn ico idc idd idi idk idn ido iic iid iii iin iio ikc iki ikk iko in- inc ind ini ink inn ino io- ioc iod ioi ion ioo kcc kcd kci kck kcn kdc kdk kdo kic kid kii kik kin kio kkc kki kkk kkn kn- knc knd kni knk knn kno koc kod koi kok kon koo n-i ncc ncd nci nck ncn nco ndc ndd ndi ndk ndn ndo nic nid nii nik nin nio nkc nki nkk nkn nko nnc nni nnk nnn nno no- noc nod noi nok non noo o-i oc- occ ocd oci ock ocn oco odc odd odi odn odo oic oid oii oik oin oio okc okd oki okk oko on- onc ond oni onk onn ono oo- ooc ood ooi ook oon ooo