-ic c-- ccc ccd cci cck ccn cco ccs cdc cdd cdi cdk cdn cdo cds ci- cic cid cii cik cin cio cis ckc ckd cki cko cks cn- cnc cnd cni cnn cno cns co- coc cod coi cok con coo cos csc csd csi csk csn cso css dcc dcd dci dck dcn dco dcs ddc ddd ddi ddk ddn ddo dds di- dic did dii dik din dio dis dkc dki dkk dko dks dnc dnd dni dnk dnn dno dns doc dod doi dok don doo dos dsc dsd dsi dsk dsn dso dss i-d icc icd ici ick icn ico ics idc idd idi idk idn ido ids iic iid iii iin iio iis ikc iki ikk iko iks in- inc ind ini ink inn ino ins io- ioc iod ioi ion ioo ios is- isc isd isi isk isn iso iss kcc kcd kci kck kcn kcs kdc kdk kdo kds kic kid kii kik kin kio kis kkc kki kkk kkn kks kn- knc knd kni knk knn kno koc kod koi kok kon koo kos ksc ksd ksi ksk ksn kso kss n-i ncc ncd nci nck ncn nco ncs ndc ndd ndi ndk ndn ndo nds nic nid nii nik nin nio nis nkc nki nkk nkn nko nks nnc nni nnk nnn nno nns no- noc nod noi nok non noo nos nsc nsd nsi nsk nsn nso nss o-i oc- occ ocd oci ock ocn oco ocs odc odd odi odn odo ods oic oid oii oik oin oio ois okc okd oki okk oko oks on- onc ond oni onk onn ono ons oo- ooc ood ooi ook oon ooo oos os- osc osd osi osk osn oso oss scc scd sci sck scn sco scs sdc sdd sdi sdk sdn sdo sds sic sid sii sik sin sio sis sk- skc skd ski skk sko sks snc snd sni snk snn sno sns soc sod soi sok son soo sos ss- ssc ssd ssi ssk ssn sso sss