-ic c-- ccc cce cci cco ccs cct ce- cec cee cei ceo ces cet ci- cic cie cii cio cis cit co- coc coe coi coo cos cot csc cse csi cso css cst ctc cte cti cto cts ctt ec- ecc ece eci eco ecs ect eec eee eeo ees eet eic eie eii eio eis eit eo- eoc eoe eoi eoo eos eot es- esc ese esi eso ess est etc ete eti eto ets ett icc ice ici ico ics ict ie- iec iee iei ies iet iic iie iii iio iis iit io- ioc ioe ioi ioo ios iot is- isc ise isi iso iss ist itc ite iti ito its itt o-i oc- occ oci oco ocs oct oec oee oei oeo oes oet oic oie oii oio ois oit oo- ooc ooi ooo oos oot os- osc ose osi oso oss ost ot- otc ote oti oto ots ott scc sce sci sco scs sct se- sec see sei seo ses set sic sie sii sio sis sit soc soe soi soo sos sot ss- ssc sse ssi sso sss sst stc ste sti sto sts stt tcc tce tci tco tcs tct te- tec tee tei teo tes tet tic tie tii tio tis tit to- toc toe toi too tos tot tsc tse tsi tso tss tst ttc tte tti tto tts ttt