-ic c-- ccc ccf cci cck cco ccp ccr ccs cct cfc cff cfi cfk cfo cfp cfr cfs cft ci- cic cif cii cik cio cip cir cis cit ckc cki cko cks ckt co- coc cof coi cok coo cop cor cos cot cpc cpf cpi cpk cpo cpp cpr cps cpt crc crf cri crk cro crp crr crs crt csc csf csi csk cso csp csr css cst ctc ctf cti ctk cto ctp ctr cts ctt fcc fcf fci fck fco fcp fcr fcs fct ffc fff ffi ffk ffo ffp ffr ffs fft fic fif fii fik fip fir fis fit fkc fkf fki fkk fkp fkt foc fof foi fok foo fop for fos fot fpc fpi fpk fpo fpp fpr fps fpt frc frf fri frk fro frp frr frs frt fsc fsf fsi fsk fso fsp fsr fss fst ftc ftf fti ftk fto ftp ftr fts ftt i-f icc icf ici ick ico icp icr ics ict ifc iff ifi ifo ifp ifr ifs ift iic iif iii iio iip iir iis iit ikc ikf iki ikk iko ikr iks ikt io- ioc iof ioi ioo iop ior ios iot ipc ipf ipi ipo ipp ipr ips ipt ir- irc irf iri irk iro irp irr irs irt is- isc isf isi isk iso isp isr iss ist itc itf iti itk ito itp its itt k-t kcc kci kck kcp kcr kcs kct kfc kff kfi kfo kfs kic kif kii kik kio kip kir kis kit kkc kki kkk kkp kkr kks kkt koc kof koi kok koo kop kor kos kot kpc kpf kpi kpk kpo kpp kpr kps kpt krc krf kri krk kro krp krr krs krt ksc ksf ksi ksk kso ksp ksr kss kst ktc ktf ktk kto ktp ktr kts ktt o-i oc- occ ocf oci ock oco ocp ocr ocs oct of- ofc off ofi ofo ofp ofr ofs oft oic oif oii oik oio oip oir ois oit okc oki okk oko okp okr oks oo- ooc oof ooi ook ooo oop oor oos oot op- opc opf opi opk opo opp opr ops opt or- orc orf ori ork oro orp orr ors ort os- osc osf osi osk oso osp osr oss ost ot- otc otf oti otk oto otp otr ots ott p-p pcc pcf pci pck pco pcp pcr pcs pct pfc pff pfi pfk pfo pfp pfr pfs pft pic pif pii pik pio pip pir pis pit pkc pkf pki pko pkp pkr pks pkt poc pof poi pok poo pop por pos pot ppc ppf ppi ppk ppo ppp ppr pps ppt prc prf pri prk pro prp prr prs prt ps- psc psf psi psk pso psp psr pss pst pt- ptc ptf pti ptk pto ptp ptr pts ptt rcc rcf rci rco rcp rcr rcs rct rfc rff rfi rfk rfo rfp rfr rfs rft ric rif rii rik rio rip rir ris rit rkc rkf rkk rko rkp rks rkt roc rof roi rok roo rop ror ros rot rpc rpf rpi rpk rpo rpp rpr rps rpt rrc rrf rri rrk rrp rrr rrs rrt rsc rsf rsi rsk rso rsp rsr rss rst rtc rtf rti rtk rto rtp rtr rts rtt scc scf sci sck sco scp scr scs sct sfc sff sfi sfk sfo sfp sfr sfs sft sic sif sii sik sio sip sir sis sit sk- skc skf ski skk sko skp skr sks skt soc sof soi sok soo sop sor sos sot spc spf spi spk spo spp spr sps spt sr- src srf sri srk sro srp srr srs srt ss- ssc ssf ssi ssk sso ssp ssr sss sst stc stf sti stk sto stp str sts stt tcc tcf tci tck tco tcp tcr tcs tct tfc tff tfi tfk tfo tfp tfr tfs tft tic tif tii tik tio tip tir tis tit tkc tkk tko tkp tkr tks tkt to- toc tof toi tok too top tor tos tot tpc tpf tpi tpk tpo tpp tpr tps tpt trc trf tri trk tro trp trr trs trt tsc tsf tsi tsk tso tsp tsr tss tst ttc ttf tti ttk tto ttp ttr tts ttt