-th c-- ccc cch cck cco ccr ccs cct ch- chc chh chk cho chr chs cht ckc ckh cko cks ckt co- coc coh cok coo cor cos cot crc crh crk cro crr crs crt csc csh csk cso csr css cst ctc cth ctk cto ctr cts ctt hcc hch hck hco hcr hcs hct hhc hhh hhk hho hhr hhs hht hkh hkk hko hkr hks hkt hoc hoh hok hoo hor hos hot hr- hrc hrh hrk hro hrr hrs hrt hsc hsh hsk hsr hss hst htc hth htk hto htr hts htt k-t kcc kch kck kcr kcs kct khh khk kho khr khs kkc kkh kkk kkr kks kkt koc koh kok koo kor kos kot krc krk kro krr krs krt ksc ksh ksk kso ksr kss kst ktc kth ktk kto ktr kts ktt oc- occ och ock oco ocr ocs oct ohc ohh oho ohr ohs oht okc okk oko okr oks oo- ooc ooh ook ooo oor oos oot or- orc orh ork oro orr ors ort os- osc osh osk oso osr oss ost ot- otc oth otk oto otr ots ott rcc rch rco rcr rcs rct rh- rhc rhh rho rhr rhs rht rkc rkk rko rks rkt roc roh rok roo ror ros rot rrc rrh rrk rrr rrs rrt rsc rsh rsk rso rsr rss rst rtc rtk rto rtr rts rtt scc sch sck sco scr scs sct sh- shc shh shk sho shr shs sht sk- skc skh skk sko skr sks skt soc soh sok soo sor sos sot sr- src srh srk sro srr srs srt ss- ssc ssh ssk sso ssr sss sst stc sth stk sto str sts stt tcc tch tck tco tcr tcs tct th- thc thh thk tho thr ths tht tkc tkk tko tkr tks tkt to- toc toh tok too tor tos tot trc trh trk tro trr trs trt tsc tsh tsk tso tsr tss tst ttc tth ttk tto ttr tts ttt