-ic c-- ccc ccd cci ccm cco ccp ccs cdc cdd cdi cdm cdo cdp cds ci- cic cid cii cim cio cip cis cmc cmd cmi cmm cmo cmp cms co- coc cod coi com coo cop cos cpc cpd cpi cpm cpo cpp cps csc csd csi csm cso csp css dcc dcd dci dcm dco dcp dcs ddc ddd ddi ddm ddo ddp dds di- dic did dii dim dio dip dis dmc dmd dmi dmm dmo dmp dms doc dod doi dom doo dop dos dpc dpd dpi dpm dpo dpp dps dsc dsd dsi dsm dso dsp dss i-d icc icd ici icm ico icp ics idc idd idi idm ido idp ids iic iid iii iim iio iip iis im- imc imd imi imm imo imp ims io- ioc iod ioi iom ioo iop ios ipc ipd ipi ipm ipo ipp ips is- isc isd isi ism iso isp iss m-o mc- mcc mcd mci mcm mco mcp mcs mdc mdd mdi mdm mdo mdp mds mi- mic mid mii mim mio mip mis mmc mmd mmi mmm mmo mmp mms moc mod moi mom moo mop mos mpc mpd mpi mpm mpo mpp mps msc msd msi msm mso msp mss o-i oc- occ ocd oci ocm oco ocp ocs odc odd odi odm odo odp ods oic oid oii oim oio oip ois om- omc omd omi omm omo omp oms oo- ooc ood ooi oom ooo oop oos op- opc opd opi opm opo opp ops os- osc osd osi osm oso osp oss p-p pcc pcd pci pcm pco pcp pcs pdc pdd pdi pdm pdo pdp pds pic pid pii pim pio pip pis pmc pmd pmi pmm pmo pmp pms poc pod poi pom poo pop pos ppc ppd ppi ppm ppo ppp pps ps- psc psd psi psm pso psp pss scc scd sci scm sco scp scs sdc sdd sdi sdm sdo sdp sds sic sid sii sim sio sip sis smc smd smi smm smo smp sms soc sod soi som soo sop sos spc spd spi spm spo spp sps ss- ssc ssd ssi ssm sso ssp sss