-ic c-- ccc cci ccr ccs cct ccu ci- cic cii cir cis cit ciu crc cri crr crs crt cru csc csi csr css cst csu ctc cti ctr cts ctt ctu cuc cui cur cus cut cuu icc ici icr ics ict icu iic iii iir iis iit iiu ir- irc iri irr irs irt iru is- isc isi isr iss ist isu itc iti its itt itu iu- iuc iui iur ius iut rcc rci rcr rcs rct rcu ric rii rir ris rit rrc rri rrr rrs rrt rru rsc rsi rsr rss rst rsu rtc rti rtr rts rtt rtu ruc rui rur rus rut ruu scc sci scr scs sct scu sic sii sir sis sit siu sr- src sri srr srs srt ss- ssc ssi ssr sss sst ssu stc sti str sts stt stu suc sui sur sus sut suu tcc tci tcr tcs tct tcu tic tii tir tis tit tiu trc tri trr trs trt tru tsc tsi tsr tss tst tsu ttc tti ttr tts ttt ttu tuc tui tur tus tut tuu ucc uci ucr ucs uct ucu uic uii uir uis uit uiu ur- urc uri urr urs urt uru usc usi usr uss ust usu utc uti utr uts utt utu uuc uur uus uut uuu