-er -th c-- ccc cce ccf cch cck cco ccr cct ce- cec cee cef ceh cek ceo cer cet cfc cfe cff cfh cfk cfo cfr cft ch- chc che chf chh chk cho chr cht ckc ckh cko ckt co- coc coe cof coh cok coo cor cot crc cre crf crh crk cro crr crt ctc cte ctf cth ctk cto ctr ctt ec- ecc ece ecf ech eck eco ecr ect eec eee eef eek eeo eer eet ef- efc efe eff efh efo efr eft ehc ehe ehf ehh eho ehr eht ekc eke ekf ekh eko ekr ekt eo- eoc eoe eof eoh eok eoo eor eot erc ere erf erh erk ero err ert etc ete etf eth etk eto etr ett fcc fce fcf fck fco fcr fct fec fee fef feh fek feo fer fet ffc ffe fff ffh ffk ffo ffr fft fhc fhe fhf fhh fho fhr fkc fkf fkk fkt foc foe fof foh fok foo for fot frc fre frf frh frk fro frr frt ftc fte ftf fth ftk fto ftr ftt hcc hce hcf hch hck hco hcr hct he- hec hee hef heh hek heo her het hfc hfe hff hfh hfk hfo hfr hft hhc hhe hhf hhh hhk hho hhr hht hkf hkh hkk hko hkr hkt hoc hoe hof hoh hok hoo hor hot hr- hrc hre hrf hrh hrk hro hrr hrt htc hte htf hth htk hto htr htt k-t kcc kce kch kck kcr kct ke- kec kee kef keh kek keo ker ket kfc kff kfh kfo khe khf khh khk kho khr kkc kke kkh kkk kkr kkt koc koe kof koh kok koo kor kot krc krf krk kro krr krt ktc kte ktf kth ktk kto ktr ktt oc- occ ocf och ock oco ocr oct oec oee oef oeh oeo oer oet of- ofc ofe off ofo ofr oft ohc ohe ohf ohh oho ohr oht okc oke okk oko okr oo- ooc oof ooh ook ooo oor oot or- orc ore orf orh ork oro orr ort ot- otc ote otf oth otk oto otr ott rcc rce rcf rch rco rcr rct re- rec ree ref reh rek reo rer ret rfc rfe rff rfh rfk rfo rfr rft rh- rhc rhe rhf rhh rho rhr rht rkc rke rkf rkk rko rkt roc roe rof roh rok roo ror rot rrc rrf rrh rrk rrr rrt rtc rte rtf rtk rto rtr rtt tcc tce tcf tch tck tco tcr tct te- tec tee tef teh tek teo ter tet tfc tfe tff tfh tfk tfo tfr tft th- thc the thf thh thk tho thr tht tkc tke tkk tko tkr tkt to- toc toe tof toh tok too tor tot trc tre trf trh trk tro trr trt ttc tte ttf tth ttk tto ttr ttt