-ic c-- ccc ccd cci cck ccn cco ccr ccs cdc cdd cdi cdk cdn cdo cdr cds ci- cic cid cii cik cin cio cir cis ckc ckd cki cko cks cn- cnc cnd cni cnn cno cnr cns co- coc cod coi cok con coo cor cos crc crd cri crk crn cro crr crs csc csd csi csk csn cso csr css dcc dcd dci dck dcn dco dcr dcs ddc ddd ddi ddk ddn ddo ddr dds di- dic did dii dik din dio dir dis dkc dki dkk dko dkr dks dnc dnd dni dnk dnn dno dnr dns doc dod doi dok don doo dor dos drc drd dri drk drn dro drr drs dsc dsd dsi dsk dsn dso dsr dss i-d icc icd ici ick icn ico icr ics idc idd idi idk idn ido idr ids iic iid iii iin iio iir iis ikc iki ikk iko ikr iks in- inc ind ini ink inn ino inr ins io- ioc iod ioi ion ioo ior ios ir- irc ird iri irk irn iro irr irs is- isc isd isi isk isn iso isr iss kcc kcd kci kck kcn kcr kcs kdc kdk kdo kdr kds kic kid kii kik kin kio kir kis kkc kki kkk kkn kkr kks kn- knc knd kni knk knn kno knr koc kod koi kok kon koo kor kos krc krd kri krk krn kro krr krs ksc ksd ksi ksk ksn kso ksr kss n-i ncc ncd nci nck ncn nco ncr ncs ndc ndd ndi ndk ndn ndo ndr nds nic nid nii nik nin nio nir nis nkc nki nkk nkn nko nkr nks nnc nni nnk nnn nno nns no- noc nod noi nok non noo nor nos nrc nrd nri nrk nrn nro nrr nrs nsc nsd nsi nsk nsn nso nsr nss o-i oc- occ ocd oci ock ocn oco ocr ocs odc odd odi odn odo odr ods oic oid oii oik oin oio oir ois okc okd oki okk oko okr oks on- onc ond oni onk onn ono onr ons oo- ooc ood ooi ook oon ooo oor oos or- orc ord ori ork orn oro orr ors os- osc osd osi osk osn oso osr oss rcc rcd rci rcn rco rcr rcs rdc rdd rdi rdn rdo rdr rds ric rid rii rik rin rio rir ris rkc rkk rko rks rnc rnd rni rnn rno rnr rns roc rod roi rok ron roo ror ros rrc rrd rri rrk rrn rrr rrs rsc rsd rsi rsk rsn rso rsr rss scc scd sci sck scn sco scr scs sdc sdd sdi sdk sdn sdo sdr sds sic sid sii sik sin sio sir sis sk- skc skd ski skk sko skr sks snc snd sni snk snn sno snr sns soc sod soi sok son soo sor sos sr- src srd sri srk srn sro srr srs ss- ssc ssd ssi ssk ssn sso ssr sss