c-- ccc ccf cck ccn cco ccr ccs cct cfc cff cfk cfn cfo cfr cfs cft ckc cko cks ckt cn- cnc cnf cnn cno cnr cns cnt co- coc cof cok con coo cor cos cot crc crf crk crn cro crr crs crt csc csf csk csn cso csr css cst ctc ctf ctk ctn cto ctr cts ctt fcc fcf fck fcn fco fcr fcs fct ffc fff ffk ffn ffo ffr ffs fft fkc fkf fkk fkt fnc fnf fnk fnn fnr fns fnt foc fof fok fon foo for fos fot frc frf frk frn fro frr frs frt fsc fsf fsk fsn fso fsr fss fst ftc ftf ftk ftn fto ftr fts ftt k-t kcc kck kcn kcr kcs kct kfc kff kfo kfs kkc kkk kkn kkr kks kkt kn- knc knf knk knn kno knr knt koc kof kok kon koo kor kos kot krc krf krk krn kro krr krs krt ksc ksf ksk ksn kso ksr kss kst ktc ktf ktk ktn kto ktr kts ktt ncc ncf nck ncn nco ncr ncs nct nfc nff nfk nfn nfo nfr nfs nft nkc nkf nkk nkn nko nkr nks nkt nnc nnf nnk nnn nno nns nnt no- noc nof nok non noo nor nos not nrc nrf nrk nrn nro nrr nrs nrt nsc nsf nsk nsn nso nsr nss nst ntc ntf ntk ntn nto ntr nts ntt oc- occ ocf ock ocn oco ocr ocs oct of- ofc off ofn ofo ofr ofs oft okc okk oko okr oks on- onc onf onk onn ono onr ons ont oo- ooc oof ook oon ooo oor oos oot or- orc orf ork orn oro orr ors ort os- osc osf osk osn oso osr oss ost ot- otc otf otk otn oto otr ots ott rcc rcf rcn rco rcr rcs rct rfc rff rfk rfn rfo rfr rfs rft rkc rkf rkk rko rks rkt rnc rnn rno rnr rns rnt roc rof rok ron roo ror ros rot rrc rrf rrk rrn rrr rrs rrt rsc rsf rsk rsn rso rsr rss rst rtc rtf rtk rtn rto rtr rts rtt scc scf sck scn sco scr scs sct sfc sff sfk sfn sfo sfr sfs sft sk- skc skf skk sko skr sks skt snc snf snk snn sno snr sns snt soc sof sok son soo sor sos sot sr- src srf srk srn sro srr srs srt ss- ssc ssf ssk ssn sso ssr sss sst stc stf stk stn sto str sts stt tcc tcf tck tcn tco tcr tcs tct tfc tff tfk tfn tfo tfr tfs tft tkc tkk tko tkr tks tkt tnc tnf tnk tnn tno tnr tns tnt to- toc tof tok ton too tor tos tot trc trf trk trn tro trr trs trt tsc tsf tsk tsn tso tsr tss tst ttc ttf ttk ttn tto ttr tts ttt