-ic c-- ccc ccd cci ccn cco ccs cct cdc cdd cdi cdn cdo cds cdt ci- cic cid cii cin cio cis cit cn- cnc cnd cni cnn cno cns cnt co- coc cod coi con coo cos cot csc csd csi csn cso css cst ctc ctd cti ctn cto cts ctt dcc dcd dci dcn dco dcs dct ddc ddd ddi ddn ddo dds ddt di- dic did dii din dio dis dit dnc dnd dni dnn dno dns dnt doc dod doi don doo dos dot dsc dsd dsi dsn dso dss dst dtc dtd dti dtn dto dts dtt i-d icc icd ici icn ico ics ict idc idd idi idn ido ids idt iic iid iii iin iio iis iit in- inc ind ini inn ino ins int io- ioc iod ioi ion ioo ios iot is- isc isd isi isn iso iss ist itc itd iti itn ito its itt n-i ncc ncd nci ncn nco ncs nct ndc ndd ndi ndn ndo nds ndt nic nid nii nin nio nis nit nnc nni nnn nno nns nnt no- noc nod noi non noo nos not nsc nsd nsi nsn nso nss nst ntc ntd nti ntn nto nts ntt o-i oc- occ ocd oci ocn oco ocs oct odc odd odi odn odo ods odt oic oid oii oin oio ois oit on- onc ond oni onn ono ons ont oo- ooc ood ooi oon ooo oos oot os- osc osd osi osn oso oss ost ot- otc otd oti otn oto ots ott scc scd sci scn sco scs sct sdc sdd sdi sdn sdo sds sdt sic sid sii sin sio sis sit snc snd sni snn sno sns snt soc sod soi son soo sos sot ss- ssc ssd ssi ssn sso sss sst stc std sti stn sto sts stt tcc tcd tci tcn tco tcs tct tdc tdd tdi tdn tdo tds tdt tic tid tii tin tio tis tit tnc tnd tni tnn tno tns tnt to- toc tod toi ton too tos tot tsc tsd tsi tsn tso tss tst ttc ttd tti ttn tto tts ttt