-ey -ic c-- ccc cce cci cco ccp ccs ce- cec cee cei ceo cep ces cey ci- cic cie cii cio cip cis co- coc coe coi coo cop cos coy cpc cpe cpi cpo cpp cps csc cse csi cso csp css csy cyc cye cyo cyp cys ec- ecc ece eci eco ecs eec eee eeo eep ees eey eic eie eii eio eip eis eo- eoc eoe eoi eoo eop eos ep- epc epe epi epo epp eps es- esc ese esi eso esp ess esy eyc eye eyo eyp eys icc ice ici ico icp ics icy ie- iec iee iei iep ies iey iic iie iii iio iip iis io- ioc ioe ioi ioo iop ios ipc ipe ipi ipo ipp ips ipy is- isc ise isi iso isp iss isy iyc iye iyo iys iyy o-i oc- occ oci oco ocp ocs oec oee oei oeo oep oes oey oic oie oii oio oip ois oo- ooc ooi ooo oop oos op- opc ope opi opo opp ops opy os- osc ose osi oso osp oss oye oyi oyo oys p-p pcc pce pci pco pcp pcs pec pee pei peo pep pes pey pic pie pii pio pip pis poc poe poi poo pop pos poy ppc ppe ppi ppo ppp pps ps- psc pse psi pso psp pss psy py- pyc pye pyo pys scc sce sci sco scp scs se- sec see sei seo sep ses sey sic sie sii sio sip sis soc soe soi soo sop sos soy spc spe spi spo spp sps spy ss- ssc sse ssi sso ssp sss sy- syc sye syi syp sys ycc yce yci yco ycp ycs ycy yec yee yei yeo yep yes yey yie yii yio yip yis yoc yoe yoi yoo yop yos yoy ypo yps ysc yse ysi yso ysp yss ysy yyc yye yys yyy