-ic c-- ccc ccf cci ccp ccr ccs cct ccx cfc cff cfi cfp cfr cfs cft cfx ci- cic cif cii cip cir cis cit cix cpc cpf cpi cpp cpr cps cpt cpx crc crf cri crp crr crs crt crx csc csf csi csp csr css cst csx ctc ctf cti ctp ctr cts ctt ctx cxc cxf cxi cxp cxr cxs cxt cxx fcc fcf fci fcp fcr fcs fct fcx ffc fff ffi ffp ffr ffs fft ffx fic fif fii fip fir fis fit fix fpc fpi fpp fpr fps fpt fpx frc frf fri frp frr frs frt fsc fsf fsi fsp fsr fss fst fsx ftc ftf fti ftp ftr fts ftt ftx fxi fxp fxr fxs fxt fxx i-f icc icf ici icp icr ics ict ifc iff ifi ifp ifr ifs ift ifx iic iif iii iip iir iis iit iix ipc ipf ipi ipp ipr ips ipt ipx ir- irc irf iri irp irr irs irt irx is- isc isf isi isp isr iss ist itc itf iti itp its itt itx ixc ixi p-p pcc pcf pci pcp pcr pcs pct pcx pfc pff pfi pfp pfr pfs pft pfx pic pif pii pip pir pis pit pix ppc ppf ppi ppp ppr pps ppt ppx prc prf pri prp prr prs prt prx ps- psc psf psi psp psr pss pst psx pt- ptc ptf pti ptp ptr pts ptt ptx pxc pxr pxs pxt rcc rcf rci rcp rcr rcs rct rcx rfc rff rfi rfp rfr rfs rft ric rif rii rip rir ris rit rix rpc rpf rpi rpp rpr rps rpt rpx rrc rrf rri rrp rrr rrs rrt rsc rsf rsi rsp rsr rss rst rsx rtc rtf rti rtp rtr rts rtt rtx rxp rxr rxs scc scf sci scp scr scs sct scx sfc sff sfi sfp sfr sfs sft sfx sic sif sii sip sir sis sit six spc spf spi spp spr sps spt spx sr- src srf sri srp srr srs srt srx ss- ssc ssf ssi ssp ssr sss sst ssx stc stf sti stp str sts stt stx sxc sxi sxs sxt t-x tcc tcf tci tcp tcr tcs tct tcx tfc tff tfi tfp tfr tfs tft tfx tic tif tii tip tir tis tit tix tpc tpf tpi tpp tpr tps tpt tpx trc trf tri trp trr trs trt trx tsc tsf tsi tsp tsr tss tst tsx ttc ttf tti ttp ttr tts ttt ttx txf txi txs txt xcf xci xcp xcr xcx xfs xft xfx xic xii xis xit xix xpc xpf xpp xps xpt xrc xrf xrt xrx xsc xsi xsp xss xst xtc xtf xti xtp xtr xts xtx xxi xxp xxx