-ic c-- ccc cci ccp ccr ccs cct ci- cic cii cip cir cis cit cpc cpi cpp cpr cps cpt crc cri crp crr crs crt csc csi csp csr css cst ctc cti ctp ctr cts ctt icc ici icp icr ics ict iic iii iip iir iis iit ipc ipi ipp ipr ips ipt ir- irc iri irp irr irs irt is- isc isi isp isr iss ist itc iti itp its itt p-p pcc pci pcp pcr pcs pct pic pii pip pir pis pit ppc ppi ppp ppr pps ppt prc pri prp prr prs prt ps- psc psi psp psr pss pst pt- ptc pti ptp ptr pts ptt rcc rci rcp rcr rcs rct ric rii rip rir ris rit rpc rpi rpp rpr rps rpt rrc rri rrp rrr rrs rrt rsc rsi rsp rsr rss rst rtc rti rtp rtr rts rtt scc sci scp scr scs sct sic sii sip sir sis sit spc spi spp spr sps spt sr- src sri srp srr srs srt ss- ssc ssi ssp ssr sss sst stc sti stp str sts stt tcc tci tcp tcr tcs tct tic tii tip tir tis tit tpc tpi tpp tpr tps tpt trc tri trp trr trs trt tsc tsi tsp tsr tss tst ttc tti ttp ttr tts ttt