-ic c-- ccc cci ccp ccs cct ci- cic cii cip cis cit cpc cpi cpp cps cpt csc csi csp css cst ctc cti ctp cts ctt icc ici icp ics ict iic iii iip iis iit ipc ipi ipp ips ipt is- isc isi isp iss ist itc iti itp its itt p-p pcc pci pcp pcs pct pic pii pip pis pit ppc ppi ppp pps ppt ps- psc psi psp pss pst pt- ptc pti ptp pts ptt scc sci scp scs sct sic sii sip sis sit spc spi spp sps spt ss- ssc ssi ssp sss sst stc sti stp sts stt tcc tci tcp tcs tct tic tii tip tis tit tpc tpi tpp tps tpt tsc tsi tsp tss tst ttc tti ttp tts ttt