-ic a-a a-c a-i aaa aac aae aai aam aao aap aas ac- aca acc ace aci acm aco acp acs aea aec aee aei aem aeo aep aes ai- aia aic aie aii aim aio aip ais ama amc ame ami amm amo amp ams aoa aoc aoe aoi aom aoo aop aos ap- apa apc ape api apm apo app aps as- asa asc ase asi asm aso asp ass c-- caa cac cae cai cam cao cap cas cca ccc cce cci ccm cco ccp ccs ce- cea cec cee cei cem ceo cep ces ci- cia cic cie cii cim cio cip cis cma cmc cme cmi cmm cmo cmp cms co- coa coc coe coi com coo cop cos cpa cpc cpe cpi cpm cpo cpp cps csa csc cse csi csm cso csp css eaa eac eae eai eam eao eap eas ec- eca ecc ece eci ecm eco ecs eea eec eee eem eeo eep ees eia eic eie eii eim eio eip eis em- ema emc eme emi emm emo emp ems eo- eoa eoc eoe eoi eom eoo eop eos ep- epa epc epe epi epm epo epp eps es- esa esc ese esi esm eso esp ess ia- iaa iac iae iai iam iao iap ias ica icc ice ici icm ico icp ics ie- iea iec iee iei iem iep ies iia iic iie iii iim iio iip iis im- ima imc ime imi imm imo imp ims io- ioa ioc ioe ioi iom ioo iop ios ipa ipc ipe ipi ipm ipo ipp ips is- isa isc ise isi ism iso isp iss m-o maa mac mae mai mam mao map mas mc- mca mcc mce mci mcm mco mcp mcs mea mec mee mei mem meo mep mes mi- mia mic mie mii mim mio mip mis mma mmc mme mmi mmm mmo mmp mms moa moc moe moi mom moo mop mos mpa mpc mpe mpi mpm mpo mpp mps msa msc mse msi msm mso msp mss o-i oaa oac oae oai oam oao oap oas oc- oca occ oci ocm oco ocp ocs oea oec oee oei oem oeo oep oes oia oic oie oii oim oio oip ois om- oma omc ome omi omm omo omp oms oo- ooa ooc ooi oom ooo oop oos op- opa opc ope opi opm opo opp ops os- osa osc ose osi osm oso osp oss p-p paa pac pae pai pam pao pap pas pca pcc pce pci pcm pco pcp pcs pea pec pee pei pem peo pep pes pia pic pie pii pim pio pip pis pma pmc pme pmi pmm pmo pmp pms poa poc poe poi pom poo pop pos ppa ppc ppe ppi ppm ppo ppp pps ps- psa psc pse psi psm pso psp pss saa sac sae sai sam sao sap sas sca scc sce sci scm sco scp scs se- sea sec see sei sem seo sep ses sia sic sie sii sim sio sip sis sma smc sme smi smm smo smp sms soa soc soe soi som soo sop sos spa spc spe spi spm spo spp sps ss- ssa ssc sse ssi ssm sso ssp sss