-ic c-- ccc ccd cci ccs ccv cdc cdd cdi cds cdv ci- cic cid cii cis civ csc csd csi css csv cvc cvd cvi cvs cvv dcc dcd dci dcs dcv ddc ddd ddi dds di- dic did dii dis div dsc dsd dsi dss dsv dvc dvd dvi dvs i-d i-v icc icd ici ics icv idc idd idi ids idv iic iid iii iis is- isc isd isi iss isv ivc ivd ivi ivs ivv scc scd sci scs scv sdc sdd sdi sds sdv sic sid sii sis siv ss- ssc ssd ssi sss ssv svc svd svi svs svv vcc vcd vci vcs vdc vdd vdi vds vdv vi- vic vid vii vis viv vsc vsd vsi vss vsv vvc vvi vvs vvv