-ic c-- ccc cci cco ccs ci- cic cii cio cis co- coc coi coo cos coy csc csi cso css csy cyc cyo cys icc ici ico ics icy iic iii iio iis io- ioc ioi ioo ios is- isc isi iso iss isy iyc iyo iys iyy o-i oc- occ oci oco ocs oic oii oio ois oo- ooc ooi ooo oos os- osc osi oso oss oyi oyo oys scc sci sco scs sic sii sio sis soc soi soo sos soy ss- ssc ssi sso sss sy- syc syi sys ycc yci yco ycs ycy yii yio yis yoc yoi yoo yos yoy ysc ysi yso yss ysy yyc yys yyy