-ic c-- ccc cce cci ccm cco ccp ccs ce- cec cee cei cem ceo cep ces ci- cic cie cii cim cio cip cis cmc cme cmi cmm cmo cmp cms co- coc coe coi com coo cop cos cpc cpe cpi cpm cpo cpp cps csc cse csi csm cso csp css ec- ecc ece eci ecm eco ecs eec eee eem eeo eep ees eic eie eii eim eio eip eis em- emc eme emi emm emo emp ems eo- eoc eoe eoi eom eoo eop eos ep- epc epe epi epm epo epp eps es- esc ese esi esm eso esp ess icc ice ici icm ico icp ics ie- iec iee iei iem iep ies iic iie iii iim iio iip iis im- imc ime imi imm imo imp ims io- ioc ioe ioi iom ioo iop ios ipc ipe ipi ipm ipo ipp ips is- isc ise isi ism iso isp iss m-o mc- mcc mce mci mcm mco mcp mcs mec mee mei mem meo mep mes mi- mic mie mii mim mio mip mis mmc mme mmi mmm mmo mmp mms moc moe moi mom moo mop mos mpc mpe mpi mpm mpo mpp mps msc mse msi msm mso msp mss o-i oc- occ oci ocm oco ocp ocs oec oee oei oem oeo oep oes oic oie oii oim oio oip ois om- omc ome omi omm omo omp oms oo- ooc ooi oom ooo oop oos op- opc ope opi opm opo opp ops os- osc ose osi osm oso osp oss p-p pcc pce pci pcm pco pcp pcs pec pee pei pem peo pep pes pic pie pii pim pio pip pis pmc pme pmi pmm pmo pmp pms poc poe poi pom poo pop pos ppc ppe ppi ppm ppo ppp pps ps- psc pse psi psm pso psp pss scc sce sci scm sco scp scs se- sec see sei sem seo sep ses sic sie sii sim sio sip sis smc sme smi smm smo smp sms soc soe soi som soo sop sos spc spe spi spm spo spp sps ss- ssc sse ssi ssm sso ssp sss