-ic c-- ccc cci cco ccp ccr ccs cct ccx ci- cic cii cio cip cir cis cit cix co- coc coi coo cop cor cos cot cox cpc cpi cpo cpp cpr cps cpt cpx crc cri cro crp crr crs crt crx csc csi cso csp csr css cst csx ctc cti cto ctp ctr cts ctt ctx cxc cxi cxo cxp cxr cxs cxt cxx icc ici ico icp icr ics ict iic iii iio iip iir iis iit iix io- ioc ioi ioo iop ior ios iot ipc ipi ipo ipp ipr ips ipt ipx ir- irc iri iro irp irr irs irt irx is- isc isi iso isp isr iss ist itc iti ito itp its itt itx ixc ixi o-i oc- occ oci oco ocp ocr ocs oct ocx oic oii oio oip oir ois oit oo- ooc ooi ooo oop oor oos oot oox op- opc opi opo opp opr ops opt opx or- orc ori oro orp orr ors ort orx os- osc osi oso osp osr oss ost osx ot- otc oti oto otp otr ots ott ox- oxc oxi oxo oxt oxx p-p pcc pci pco pcp pcr pcs pct pcx pic pii pio pip pir pis pit pix poc poi poo pop por pos pot pox ppc ppi ppo ppp ppr pps ppt ppx prc pri pro prp prr prs prt prx ps- psc psi pso psp psr pss pst psx pt- ptc pti pto ptp ptr pts ptt ptx pxc pxr pxs pxt rcc rci rco rcp rcr rcs rct rcx ric rii rio rip rir ris rit rix roc roi roo rop ror ros rot rox rpc rpi rpo rpp rpr rps rpt rpx rrc rri rrp rrr rrs rrt rsc rsi rso rsp rsr rss rst rsx rtc rti rto rtp rtr rts rtt rtx rxp rxr rxs scc sci sco scp scr scs sct scx sic sii sio sip sir sis sit six soc soi soo sop sor sos sot sox spc spi spo spp spr sps spt spx sr- src sri sro srp srr srs srt srx ss- ssc ssi sso ssp ssr sss sst ssx stc sti sto stp str sts stt stx sxc sxi sxs sxt t-x tcc tci tco tcp tcr tcs tct tcx tic tii tio tip tir tis tit tix to- toc toi too top tor tos tot tox tpc tpi tpo tpp tpr tps tpt tpx trc tri tro trp trr trs trt trx tsc tsi tso tsp tsr tss tst tsx ttc tti tto ttp ttr tts ttt ttx txi txs txt xci xcp xcr xcx xic xii xio xis xit xix xoc xoi xoo xop xor xos xot xox xpc xpo xpp xps xpt xrc xrt xrx xsc xsi xsp xss xst xtc xti xtp xtr xts xtx xxi xxo xxp xxx