-ic -ol c-- ccc cch cci cck ccl cco ccr ccs ch- chc chh chi chk chl cho chr chs ci- cic cih cii cik cil cio cir cis ckc ckh cki cko cks cl- clc clh cli clk cll clo clr cls co- coc coh coi cok col coo cor cos crc crh cri crk crl cro crr crs csc csh csi csk csl cso csr css h-i hcc hch hci hck hcl hco hcr hcs hhc hhh hhi hhk hhl hho hhr hhs hic hih hii hik hil hio hir his hkh hki hkk hkl hko hkr hks hlc hlh hli hll hlo hlr hls hoc hoh hoi hok hol hoo hor hos hr- hrc hrh hri hrk hrl hro hrr hrs hsc hsh hsi hsk hsl hsr hss icc ich ici ick icl ico icr ics ihc ihh ihi ihk ihl iho ihr ihs iic iih iii iil iio iir iis ikc iki ikk ikl iko ikr iks il- ilc ilh ili ilk ill ilo ilr ils io- ioc ioh ioi iol ioo ior ios ir- irc iri irk irl iro irr irs is- isc ish isi isk isl iso isr iss kcc kch kci kck kcl kcr kcs khh khi khk kho khr khs kic kih kii kik kil kio kir kis kkc kkh kki kkk kkl kkr kks kl- klc klh kli klo klr kls koc koh koi kok kol koo kor kos krc kri krk krl kro krr krs ksc ksh ksi ksk ksl kso ksr kss lcc lch lci lck lcl lco lcr lcs lhc lhh lhi lhk lho lhr lhs lic lih lii lik lil lio lir lis lkh lkl lkr lks llc lli llk lll llo llr lls loc loh loi lok lol loo lor los lrc lrh lri lrk lro lrr lrs lsc lsh lsi lsk lsl lso lsr lss o-i oc- occ och oci ock ocl oco ocr ocs ohc ohh ohi ohl oho ohr ohs oic oii oik oil oio oir ois okc oki okk okl oko okr oks olc oli olk oll olo ols oo- ooc ooh ooi ook ool ooo oor oos or- orc orh ori ork orl oro orr ors os- osc osh osi osk osl oso osr oss rcc rch rci rcl rco rcr rcs rh- rhc rhh rhi rhl rho rhr rhs ric rih rii rik ril rio rir ris rkc rkk rko rks rlc rlh rli rll rlo rlr rls roc roh roi rok rol roo ror ros rrc rrh rri rrk rrl rrr rrs rsc rsh rsi rsk rsl rso rsr rss scc sch sci sck scl sco scr scs sh- shc shh shi shk shl sho shr shs sic sih sii sik sil sio sir sis sk- skc skh ski skk skl sko skr sks slc slh sli slk sll slo slr sls soc soh soi sok sol soo sor sos sr- src srh sri srk srl sro srr srs ss- ssc ssh ssi ssk ssl sso ssr sss