-ic c-- ccc cce cci cck ccl ccx ce- cec cee cei cek cel cex ci- cic cie cii cik cil cix ckc cki ckx cl- clc cle cli clk cll clx cxc cxi cxk cxl cxx ec- ecc ece eci eck ecl ecx eec eee eek eel eex eic eie eii eik eil eix ekc eke eki ekl elc ele eli elk ell elx ex- exc exe exi exl exx icc ice ici ick icl ie- iec iee iei iek iel iex iic iie iii iil iix ikc ike iki ikk ikl ikx il- ilc ile ili ilk ill ilx ixc ixe ixi ixl kcc kce kci kck kcl kcx ke- kec kee kei kek kel kex kic kie kii kik kil kix kkc kke kki kkk kkl kl- klc kli klx kxl lcc lce lci lck lcl lcx lec lee lei lek lel lex lic lie lii lik lil lix lkl llc lle lli llk lll lxc lxi lxx xci xcl xcx xee xel xex xic xie xii xix xke xkl xli xxi xxl xxx