-ic c-- ccc cci cck ccr ccs ccu ci- cic cii cik cir cis ciu ckc cki cks crc cri crk crr crs cru csc csi csk csr css csu cuc cui cuk cur cus cuu icc ici ick icr ics icu iic iii iir iis iiu ikc iki ikk ikr iks iku ir- irc iri irk irr irs iru is- isc isi isk isr iss isu iu- iuc iui iur ius kcc kci kck kcr kcs kcu kic kii kik kir kis kiu kkc kki kkk kkr kks kku krc kri krk krr krs kru ksc ksi ksk ksr kss ksu kuc kui kuk kur kus kuu rcc rci rcr rcs rcu ric rii rik rir ris rkc rkk rks rku rrc rri rrk rrr rrs rru rsc rsi rsk rsr rss rsu ruc rui ruk rur rus ruu scc sci sck scr scs scu sic sii sik sir sis siu sk- skc ski skk skr sks sku sr- src sri srk srr srs ss- ssc ssi ssk ssr sss ssu suc sui suk sur sus suu ucc uci uck ucr ucs ucu uic uii uir uis uiu ukc uki ukk ukr uku ur- urc uri urk urr urs uru usc usi usk usr uss usu uuc uur uus uuu