-ic c-- ccc ccd cci cck ccr ccs cct cdc cdd cdi cdk cdr cds cdt cdy ci- cic cid cii cik cir cis cit ckc ckd cki cks ckt cky crc crd cri crk crr crs crt cry csc csd csi csk csr css cst csy ctc ctd cti ctk ctr cts ctt cty cyc cyd cyk cyr cys cyt dcc dcd dci dck dcr dcs dct ddc ddd ddi ddk ddr dds ddt ddy di- dic did dii dik dir dis dit diy dkc dki dkk dkr dks dkt drc drd dri drk drr drs drt dry dsc dsd dsi dsk dsr dss dst dsy dtc dtd dti dtk dtr dts dtt dty dy- dyc dyd dyk dyr dys dyy i-d icc icd ici ick icr ics ict icy idc idd idi idk idr ids idt idy iic iid iii iir iis iit ikc iki ikk ikr iks ikt ir- irc ird iri irk irr irs irt iry is- isc isd isi isk isr iss ist isy itc itd iti itk its itt ity iyc iyr iys iyt iyy k-t kcc kcd kci kck kcr kcs kct kdc kdk kdr kds kdt kdy kic kid kii kik kir kis kit kkc kki kkk kkr kks kkt kky krc krd kri krk krr krs krt kry ksc ksd ksi ksk ksr kss kst ktc ktk ktr kts ktt kyc kyd kyr kys kyt rcc rcd rci rcr rcs rct rdc rdd rdi rdr rds rdt rdy ric rid rii rik rir ris rit riy rkc rkk rks rkt rky rrc rrd rri rrk rrr rrs rrt rsc rsd rsi rsk rsr rss rst rtc rtd rti rtk rtr rts rtt rty ry- ryc ryd ryk ryr rys ryy scc scd sci sck scr scs sct sdc sdd sdi sdk sdr sds sdt sdy sic sid sii sik sir sis sit sk- skc skd ski skk skr sks skt sky sr- src srd sri srk srr srs srt sry ss- ssc ssd ssi ssk ssr sss sst stc std sti stk str sts stt sty sy- syc syd syi syk syr sys syt tcc tcd tci tck tcr tcs tct tdc tdd tdi tdk tdr tds tdt tdy tic tid tii tik tir tis tit tiy tkc tkk tkr tks tkt tky trc trd tri trk trr trs trt try tsc tsd tsi tsk tsr tss tst tsy ttc ttd tti ttk ttr tts ttt tty tyc tyd tyr tys tyt ycc ycd yci ycs ycy yds ydt ydy yid yii yir yis yit yki ykk yrc yrs yrt ysc ysi ysk ysr yss yst ysy ytc ytd ytk ytr yts ytt yyc yys yyt yyy