-ic c-- ccc cci cco ccs cct ci- cic cii cio cis cit co- coc coi coo cos cot coy csc csi cso css cst csy ctc cti cto cts ctt cty cyc cyo cys cyt icc ici ico ics ict icy iic iii iio iis iit io- ioc ioi ioo ios iot is- isc isi iso iss ist isy itc iti ito its itt ity iyc iyo iys iyt iyy o-i oc- occ oci oco ocs oct oic oii oio ois oit oo- ooc ooi ooo oos oot os- osc osi oso oss ost ot- otc oti oto ots ott oyi oyo oys scc sci sco scs sct sic sii sio sis sit soc soi soo sos sot soy ss- ssc ssi sso sss sst stc sti sto sts stt sty sy- syc syi sys syt tcc tci tco tcs tct tic tii tio tis tit tiy to- toc toi too tos tot toy tsc tsi tso tss tst tsy ttc tti tto tts ttt tty tyc tyo tys tyt ycc yci yco ycs ycy yii yio yis yit yoc yoi yoo yos yot yoy ysc ysi yso yss yst ysy ytc yto yts ytt yyc yys yyt yyy