-ic c-- ccc cce cci cco ccp ccs cct ce- cec cee cei ceo cep ces cet ci- cic cie cii cio cip cis cit co- coc coe coi coo cop cos cot cpc cpe cpi cpo cpp cps cpt csc cse csi cso csp css cst ctc cte cti cto ctp cts ctt ec- ecc ece eci eco ecs ect eec eee eeo eep ees eet eic eie eii eio eip eis eit eo- eoc eoe eoi eoo eop eos eot ep- epc epe epi epo epp eps ept es- esc ese esi eso esp ess est etc ete eti eto etp ets ett icc ice ici ico icp ics ict ie- iec iee iei iep ies iet iic iie iii iio iip iis iit io- ioc ioe ioi ioo iop ios iot ipc ipe ipi ipo ipp ips ipt is- isc ise isi iso isp iss ist itc ite iti ito itp its itt o-i oc- occ oci oco ocp ocs oct oec oee oei oeo oep oes oet oic oie oii oio oip ois oit oo- ooc ooi ooo oop oos oot op- opc ope opi opo opp ops opt os- osc ose osi oso osp oss ost ot- otc ote oti oto otp ots ott p-p pcc pce pci pco pcp pcs pct pec pee pei peo pep pes pet pic pie pii pio pip pis pit poc poe poi poo pop pos pot ppc ppe ppi ppo ppp pps ppt ps- psc pse psi pso psp pss pst pt- ptc pte pti pto ptp pts ptt scc sce sci sco scp scs sct se- sec see sei seo sep ses set sic sie sii sio sip sis sit soc soe soi soo sop sos sot spc spe spi spo spp sps spt ss- ssc sse ssi sso ssp sss sst stc ste sti sto stp sts stt tcc tce tci tco tcp tcs tct te- tec tee tei teo tep tes tet tic tie tii tio tip tis tit to- toc toe toi too top tos tot tpc tpe tpi tpo tpp tps tpt tsc tse tsi tso tsp tss tst ttc tte tti tto ttp tts ttt