-ic c-- ccc ccd cci cck cco ccr ccs cdc cdd cdi cdk cdo cdr cds cdy ci- cic cid cii cik cio cir cis ckc ckd cki cko cks cky co- coc cod coi cok coo cor cos coy crc crd cri crk cro crr crs cry csc csd csi csk cso csr css csy cyc cyd cyk cyo cyr cys dcc dcd dci dck dco dcr dcs ddc ddd ddi ddk ddo ddr dds ddy di- dic did dii dik dio dir dis diy dkc dki dkk dko dkr dks doc dod doi dok doo dor dos doy drc drd dri drk dro drr drs dry dsc dsd dsi dsk dso dsr dss dsy dy- dyc dyd dyk dyo dyr dys dyy i-d icc icd ici ick ico icr ics icy idc idd idi idk ido idr ids idy iic iid iii iio iir iis ikc iki ikk iko ikr iks io- ioc iod ioi ioo ior ios ir- irc ird iri irk iro irr irs iry is- isc isd isi isk iso isr iss isy iyc iyo iyr iys iyy kcc kcd kci kck kcr kcs kdc kdk kdo kdr kds kdy kic kid kii kik kio kir kis kkc kki kkk kkr kks kky koc kod koi kok koo kor kos koy krc krd kri krk kro krr krs kry ksc ksd ksi ksk kso ksr kss kyc kyd kyo kyr kys o-i oc- occ ocd oci ock oco ocr ocs odc odd odi odo odr ods oic oid oii oik oio oir ois okc okd oki okk oko okr oks oo- ooc ood ooi ook ooo oor oos or- orc ord ori ork oro orr ors ory os- osc osd osi osk oso osr oss oyd oyi oyo oys rcc rcd rci rco rcr rcs rdc rdd rdi rdo rdr rds rdy ric rid rii rik rio rir ris riy rkc rkk rko rks rky roc rod roi rok roo ror ros roy rrc rrd rri rrk rrr rrs rsc rsd rsi rsk rso rsr rss ry- ryc ryd ryk ryo ryr rys ryy scc scd sci sck sco scr scs sdc sdd sdi sdk sdo sdr sds sdy sic sid sii sik sio sir sis sk- skc skd ski skk sko skr sks sky soc sod soi sok soo sor sos soy sr- src srd sri srk sro srr srs sry ss- ssc ssd ssi ssk sso ssr sss sy- syc syd syi syk syr sys ycc ycd yci yco ycs ycy ydo yds ydy yid yii yio yir yis yki ykk yoc yod yoi yok yoo yor yos yoy yrc yro yrs ysc ysi ysk yso ysr yss ysy yyc yys yyy