-ic c-- ccc cce cci cco ccp ccs cct ccx ce- cec cee cei ceo cep ces cet cex ci- cic cie cii cio cip cis cit cix co- coc coe coi coo cop cos cot cox cpc cpe cpi cpo cpp cps cpt cpx csc cse csi cso csp css cst csx ctc cte cti cto ctp cts ctt ctx cxc cxi cxo cxp cxs cxt cxx ec- ecc ece eci eco ecs ect ecx eec eee eeo eep ees eet eex eic eie eii eio eip eis eit eix eo- eoc eoe eoi eoo eop eos eot ep- epc epe epi epo epp eps ept epx es- esc ese esi eso esp ess est esx etc ete eti eto etp ets ett etx ex- exc exe exi exo exp exs ext exx icc ice ici ico icp ics ict ie- iec iee iei iep ies iet iex iic iie iii iio iip iis iit iix io- ioc ioe ioi ioo iop ios iot ipc ipe ipi ipo ipp ips ipt ipx is- isc ise isi iso isp iss ist itc ite iti ito itp its itt itx ixc ixe ixi o-i oc- occ oci oco ocp ocs oct ocx oec oee oei oeo oep oes oet oex oic oie oii oio oip ois oit oo- ooc ooi ooo oop oos oot oox op- opc ope opi opo opp ops opt opx os- osc ose osi oso osp oss ost osx ot- otc ote oti oto otp ots ott ox- oxc oxi oxo oxt oxx p-p pcc pce pci pco pcp pcs pct pcx pec pee pei peo pep pes pet pex pic pie pii pio pip pis pit pix poc poe poi poo pop pos pot pox ppc ppe ppi ppo ppp pps ppt ppx ps- psc pse psi pso psp pss pst psx pt- ptc pte pti pto ptp pts ptt ptx pxc pxe pxs pxt scc sce sci sco scp scs sct scx se- sec see sei seo sep ses set sex sic sie sii sio sip sis sit six soc soe soi soo sop sos sot sox spc spe spi spo spp sps spt spx ss- ssc sse ssi sso ssp sss sst ssx stc ste sti sto stp sts stt stx sxc sxi sxs sxt t-x tcc tce tci tco tcp tcs tct tcx te- tec tee tei teo tep tes tet tex tic tie tii tio tip tis tit tix to- toc toe toi too top tos tot tox tpc tpe tpi tpo tpp tps tpt tpx tsc tse tsi tso tsp tss tst tsx ttc tte tti tto ttp tts ttt ttx txe txi txs txt xci xcp xcx xee xep xes xet xex xic xie xii xio xis xit xix xoc xoi xoo xop xos xot xox xpc xpe xpo xpp xps xpt xsc xsi xsp xss xst xtc xti xtp xts xtx xxi xxo xxp xxx