-ic c-- ccc ccd cci ccl ccs cdc cdd cdi cdl cds ci- cic cid cii cil cis cl- clc cld cli cll cls csc csd csi csl css dcc dcd dci dcl dcs ddc ddd ddi ddl dds di- dic did dii dil dis dl- dlc dld dli dll dls dsc dsd dsi dsl dss i-d icc icd ici icl ics idc idd idi idl ids iic iid iii iil iis il- ilc ild ili ill ils is- isc isd isi isl iss lcc lcd lci lcl lcs ldc ldd ldi ldl lds lic lid lii lil lis llc lld lli lll lls lsc lsd lsi lsl lss scc scd sci scl scs sdc sdd sdi sdl sds sic sid sii sil sis slc sld sli sll sls ss- ssc ssd ssi ssl sss