-ic c-- ccc ccd cce cci ccl ccs cdc cdd cde cdi cdl cds ce- cec ced cee cei cel ces ci- cic cid cie cii cil cis cl- clc cld cle cli cll cls csc csd cse csi csl css dcc dcd dce dci dcl dcs ddc ddd dde ddi ddl dds de- dec ded dee dei del des di- dic did die dii dil dis dl- dlc dld dle dli dll dls dsc dsd dse dsi dsl dss ec- ecc ecd ece eci ecl ecs ed- edc edd ede edi edl eds eec eed eee eel ees eic eid eie eii eil eis elc eld ele eli ell els es- esc esd ese esi esl ess i-d icc icd ice ici icl ics idc idd ide idi idl ids ie- iec ied iee iei iel ies iic iid iie iii iil iis il- ilc ild ile ili ill ils is- isc isd ise isi isl iss lcc lcd lce lci lcl lcs ldc ldd lde ldi ldl lds lec led lee lei lel les lic lid lie lii lil lis llc lld lle lli lll lls lsc lsd lse lsi lsl lss scc scd sce sci scl scs sdc sdd sde sdi sdl sds se- sec sed see sei sel ses sic sid sie sii sil sis slc sld sle sli sll sls ss- ssc ssd sse ssi ssl sss