-ic c-- ccc ccd cci cck cco ccp ccr ccs cdc cdd cdi cdk cdo cdp cdr cds ci- cic cid cii cik cio cip cir cis ckc ckd cki cko cks co- coc cod coi cok coo cop cor cos cpc cpd cpi cpk cpo cpp cpr cps crc crd cri crk cro crp crr crs csc csd csi csk cso csp csr css dcc dcd dci dck dco dcp dcr dcs ddc ddd ddi ddk ddo ddp ddr dds di- dic did dii dik dio dip dir dis dkc dki dkk dko dkp dkr dks doc dod doi dok doo dop dor dos dpc dpd dpi dpk dpo dpp dpr dps drc drd dri drk dro drp drr drs dsc dsd dsi dsk dso dsp dsr dss i-d icc icd ici ick ico icp icr ics idc idd idi idk ido idp idr ids iic iid iii iio iip iir iis ikc iki ikk iko ikr iks io- ioc iod ioi ioo iop ior ios ipc ipd ipi ipo ipp ipr ips ir- irc ird iri irk iro irp irr irs is- isc isd isi isk iso isp isr iss kcc kcd kci kck kcp kcr kcs kdc kdk kdo kdp kdr kds kic kid kii kik kio kip kir kis kkc kki kkk kkp kkr kks koc kod koi kok koo kop kor kos kpc kpd kpi kpk kpo kpp kpr kps krc krd kri krk kro krp krr krs ksc ksd ksi ksk kso ksp ksr kss o-i oc- occ ocd oci ock oco ocp ocr ocs odc odd odi odo odp odr ods oic oid oii oik oio oip oir ois okc okd oki okk oko okp okr oks oo- ooc ood ooi ook ooo oop oor oos op- opc opd opi opk opo opp opr ops or- orc ord ori ork oro orp orr ors os- osc osd osi osk oso osp osr oss p-p pcc pcd pci pck pco pcp pcr pcs pdc pdd pdi pdk pdo pdp pdr pds pic pid pii pik pio pip pir pis pkc pkd pki pko pkp pkr pks poc pod poi pok poo pop por pos ppc ppd ppi ppk ppo ppp ppr pps prc prd pri prk pro prp prr prs ps- psc psd psi psk pso psp psr pss rcc rcd rci rco rcp rcr rcs rdc rdd rdi rdo rdp rdr rds ric rid rii rik rio rip rir ris rkc rkk rko rkp rks roc rod roi rok roo rop ror ros rpc rpd rpi rpk rpo rpp rpr rps rrc rrd rri rrk rrp rrr rrs rsc rsd rsi rsk rso rsp rsr rss scc scd sci sck sco scp scr scs sdc sdd sdi sdk sdo sdp sdr sds sic sid sii sik sio sip sir sis sk- skc skd ski skk sko skp skr sks soc sod soi sok soo sop sor sos spc spd spi spk spo spp spr sps sr- src srd sri srk sro srp srr srs ss- ssc ssd ssi ssk sso ssp ssr sss