-ic c-- ccc ccf cch cci cck cco ccr ccs cfc cff cfh cfi cfk cfo cfr cfs ch- chc chf chh chi chk cho chr chs ci- cic cif cih cii cik cio cir cis ckc ckh cki cko cks co- coc cof coh coi cok coo cor cos crc crf crh cri crk cro crr crs csc csf csh csi csk cso csr css fcc fcf fci fck fco fcr fcs ffc fff ffh ffi ffk ffo ffr ffs fhc fhf fhh fhi fho fhr fhs fic fif fih fii fik fir fis fkc fkf fki fkk foc fof foh foi fok foo for fos frc frf frh fri frk fro frr frs fsc fsf fsh fsi fsk fso fsr fss h-i hcc hcf hch hci hck hco hcr hcs hfc hff hfh hfi hfk hfo hfr hfs hhc hhf hhh hhi hhk hho hhr hhs hic hif hih hii hik hio hir his hkf hkh hki hkk hko hkr hks hoc hof hoh hoi hok hoo hor hos hr- hrc hrf hrh hri hrk hro hrr hrs hsc hsf hsh hsi hsk hsr hss i-f icc icf ich ici ick ico icr ics ifc iff ifi ifo ifr ifs ihc ihf ihh ihi ihk iho ihr ihs iic iif iih iii iio iir iis ikc ikf iki ikk iko ikr iks io- ioc iof ioh ioi ioo ior ios ir- irc irf iri irk iro irr irs is- isc isf ish isi isk iso isr iss kcc kch kci kck kcr kcs kfc kff kfh kfi kfo kfs khf khh khi khk kho khr khs kic kif kih kii kik kio kir kis kkc kkh kki kkk kkr kks koc kof koh koi kok koo kor kos krc krf kri krk kro krr krs ksc ksf ksh ksi ksk kso ksr kss o-i oc- occ ocf och oci ock oco ocr ocs of- ofc off ofi ofo ofr ofs ohc ohf ohh ohi oho ohr ohs oic oif oii oik oio oir ois okc oki okk oko okr oks oo- ooc oof ooh ooi ook ooo oor oos or- orc orf orh ori ork oro orr ors os- osc osf osh osi osk oso osr oss rcc rcf rch rci rco rcr rcs rfc rff rfh rfi rfk rfo rfr rfs rh- rhc rhf rhh rhi rho rhr rhs ric rif rih rii rik rio rir ris rkc rkf rkk rko rks roc rof roh roi rok roo ror ros rrc rrf rrh rri rrk rrr rrs rsc rsf rsh rsi rsk rso rsr rss scc scf sch sci sck sco scr scs sfc sff sfh sfi sfk sfo sfr sfs sh- shc shf shh shi shk sho shr shs sic sif sih sii sik sio sir sis sk- skc skf skh ski skk sko skr sks soc sof soh soi sok soo sor sos sr- src srf srh sri srk sro srr srs ss- ssc ssf ssh ssi ssk sso ssr sss