-ic c-- ccc cci cck ccr ccs cct ci- cic cii cik cir cis cit ckc cki cks ckt cky crc cri crk crr crs crt cry csc csi csk csr css cst csy ctc cti ctk ctr cts ctt cty cyc cyk cyr cys cyt icc ici ick icr ics ict icy iic iii iir iis iit ikc iki ikk ikr iks ikt ir- irc iri irk irr irs irt iry is- isc isi isk isr iss ist isy itc iti itk its itt ity iyc iyr iys iyt iyy k-t kcc kci kck kcr kcs kct kic kii kik kir kis kit kkc kki kkk kkr kks kkt kky krc kri krk krr krs krt kry ksc ksi ksk ksr kss kst ktc ktk ktr kts ktt kyc kyr kys kyt rcc rci rcr rcs rct ric rii rik rir ris rit riy rkc rkk rks rkt rky rrc rri rrk rrr rrs rrt rsc rsi rsk rsr rss rst rtc rti rtk rtr rts rtt rty ry- ryc ryk ryr rys ryy scc sci sck scr scs sct sic sii sik sir sis sit sk- skc ski skk skr sks skt sky sr- src sri srk srr srs srt sry ss- ssc ssi ssk ssr sss sst stc sti stk str sts stt sty sy- syc syi syk syr sys syt tcc tci tck tcr tcs tct tic tii tik tir tis tit tiy tkc tkk tkr tks tkt tky trc tri trk trr trs trt try tsc tsi tsk tsr tss tst tsy ttc tti ttk ttr tts ttt tty tyc tyr tys tyt ycc yci ycs ycy yii yir yis yit yki ykk yrc yrs yrt ysc ysi ysk ysr yss yst ysy ytc ytk ytr yts ytt yyc yys yyt yyy