-ic c-- ccc ccd cci cck ccs cct cdc cdd cdi cdk cds cdt cdy ci- cic cid cii cik cis cit ckc ckd cki cks ckt cky csc csd csi csk css cst csy ctc ctd cti ctk cts ctt cty cyc cyd cyk cys cyt dcc dcd dci dck dcs dct ddc ddd ddi ddk dds ddt ddy di- dic did dii dik dis dit diy dkc dki dkk dks dkt dsc dsd dsi dsk dss dst dsy dtc dtd dti dtk dts dtt dty dy- dyc dyd dyk dys dyy i-d icc icd ici ick ics ict icy idc idd idi idk ids idt idy iic iid iii iis iit ikc iki ikk iks ikt is- isc isd isi isk iss ist isy itc itd iti itk its itt ity iyc iys iyt iyy k-t kcc kcd kci kck kcs kct kdc kdk kds kdt kdy kic kid kii kik kis kit kkc kki kkk kks kkt kky ksc ksd ksi ksk kss kst ktc ktk kts ktt kyc kyd kys kyt scc scd sci sck scs sct sdc sdd sdi sdk sds sdt sdy sic sid sii sik sis sit sk- skc skd ski skk sks skt sky ss- ssc ssd ssi ssk sss sst stc std sti stk sts stt sty sy- syc syd syi syk sys syt tcc tcd tci tck tcs tct tdc tdd tdi tdk tds tdt tdy tic tid tii tik tis tit tiy tkc tkk tks tkt tky tsc tsd tsi tsk tss tst tsy ttc ttd tti ttk tts ttt tty tyc tyd tys tyt ycc ycd yci ycs ycy yds ydt ydy yid yii yis yit yki ykk ysc ysi ysk yss yst ysy ytc ytd ytk yts ytt yyc yys yyt yyy