-ic c-- ccc ccd cci ccn cco ccr ccs cdc cdd cdi cdn cdo cdr cds ci- cic cid cii cin cio cir cis cn- cnc cnd cni cnn cno cnr cns co- coc cod coi con coo cor cos crc crd cri crn cro crr crs csc csd csi csn cso csr css dcc dcd dci dcn dco dcr dcs ddc ddd ddi ddn ddo ddr dds di- dic did dii din dio dir dis dnc dnd dni dnn dno dnr dns doc dod doi don doo dor dos drc drd dri drn dro drr drs dsc dsd dsi dsn dso dsr dss i-d icc icd ici icn ico icr ics idc idd idi idn ido idr ids iic iid iii iin iio iir iis in- inc ind ini inn ino inr ins io- ioc iod ioi ion ioo ior ios ir- irc ird iri irn iro irr irs is- isc isd isi isn iso isr iss n-i ncc ncd nci ncn nco ncr ncs ndc ndd ndi ndn ndo ndr nds nic nid nii nin nio nir nis nnc nni nnn nno nns no- noc nod noi non noo nor nos nrc nrd nri nrn nro nrr nrs nsc nsd nsi nsn nso nsr nss o-i oc- occ ocd oci ocn oco ocr ocs odc odd odi odn odo odr ods oic oid oii oin oio oir ois on- onc ond oni onn ono onr ons oo- ooc ood ooi oon ooo oor oos or- orc ord ori orn oro orr ors os- osc osd osi osn oso osr oss rcc rcd rci rcn rco rcr rcs rdc rdd rdi rdn rdo rdr rds ric rid rii rin rio rir ris rnc rnd rni rnn rno rnr rns roc rod roi ron roo ror ros rrc rrd rri rrn rrr rrs rsc rsd rsi rsn rso rsr rss scc scd sci scn sco scr scs sdc sdd sdi sdn sdo sdr sds sic sid sii sin sio sir sis snc snd sni snn sno snr sns soc sod soi son soo sor sos sr- src srd sri srn sro srr srs ss- ssc ssd ssi ssn sso ssr sss