-ic c-- ccc ccf cci ccp ccr ccs cct cfc cff cfi cfp cfr cfs cft ci- cic cif cii cip cir cis cit cpc cpf cpi cpp cpr cps cpt crc crf cri crp crr crs crt csc csf csi csp csr css cst ctc ctf cti ctp ctr cts ctt fcc fcf fci fcp fcr fcs fct ffc fff ffi ffp ffr ffs fft fic fif fii fip fir fis fit fpc fpi fpp fpr fps fpt frc frf fri frp frr frs frt fsc fsf fsi fsp fsr fss fst ftc ftf fti ftp ftr fts ftt i-f icc icf ici icp icr ics ict ifc iff ifi ifp ifr ifs ift iic iif iii iip iir iis iit ipc ipf ipi ipp ipr ips ipt ir- irc irf iri irp irr irs irt is- isc isf isi isp isr iss ist itc itf iti itp its itt p-p pcc pcf pci pcp pcr pcs pct pfc pff pfi pfp pfr pfs pft pic pif pii pip pir pis pit ppc ppf ppi ppp ppr pps ppt prc prf pri prp prr prs prt ps- psc psf psi psp psr pss pst pt- ptc ptf pti ptp ptr pts ptt rcc rcf rci rcp rcr rcs rct rfc rff rfi rfp rfr rfs rft ric rif rii rip rir ris rit rpc rpf rpi rpp rpr rps rpt rrc rrf rri rrp rrr rrs rrt rsc rsf rsi rsp rsr rss rst rtc rtf rti rtp rtr rts rtt scc scf sci scp scr scs sct sfc sff sfi sfp sfr sfs sft sic sif sii sip sir sis sit spc spf spi spp spr sps spt sr- src srf sri srp srr srs srt ss- ssc ssf ssi ssp ssr sss sst stc stf sti stp str sts stt tcc tcf tci tcp tcr tcs tct tfc tff tfi tfp tfr tfs tft tic tif tii tip tir tis tit tpc tpf tpi tpp tpr tps tpt trc trf tri trp trr trs trt tsc tsf tsi tsp tsr tss tst ttc ttf tti ttp ttr tts ttt