-ic c-- ccc cci cck ccl ccr ccs ci- cic cii cik cil cir cis ckc cki cks cl- clc cli clk cll clr cls crc cri crk crl crr crs csc csi csk csl csr css icc ici ick icl icr ics iic iii iil iir iis ikc iki ikk ikl ikr iks il- ilc ili ilk ill ilr ils ir- irc iri irk irl irr irs is- isc isi isk isl isr iss kcc kci kck kcl kcr kcs kic kii kik kil kir kis kkc kki kkk kkl kkr kks kl- klc kli klr kls krc kri krk krl krr krs ksc ksi ksk ksl ksr kss lcc lci lck lcl lcr lcs lic lii lik lil lir lis lkl lkr lks llc lli llk lll llr lls lrc lri lrk lrr lrs lsc lsi lsk lsl lsr lss rcc rci rcl rcr rcs ric rii rik ril rir ris rkc rkk rks rlc rli rll rlr rls rrc rri rrk rrl rrr rrs rsc rsi rsk rsl rsr rss scc sci sck scl scr scs sic sii sik sil sir sis sk- skc ski skk skl skr sks slc sli slk sll slr sls sr- src sri srk srl srr srs ss- ssc ssi ssk ssl ssr sss