a-a a-c aaa aac aad aae aam aao ac- aca acc acd ace acm aco ad- ada adc add ade adm ado aea aec aed aee aem aeo ama amc amd ame amm amo aoa aoc aod aoe aom aoo c-- caa cac cad cae cam cao cca ccc ccd cce ccm cco cda cdc cdd cde cdm cdo ce- cea cec ced cee cem ceo cma cmc cmd cme cmm cmo co- coa coc cod coe com coo daa dac dad dae dam dao dca dcc dcd dce dcm dco dda ddc ddd dde ddm ddo de- dea dec ded dee dem deo dma dmc dmd dme dmm dmo doa doc dod doe dom doo eaa eac ead eae eam eao ec- eca ecc ecd ece ecm eco ed- eda edc edd ede edm edo eea eec eed eee eem eeo em- ema emc emd eme emm emo eo- eoa eoc eod eoe eom eoo m-o maa mac mad mae mam mao mc- mca mcc mcd mce mcm mco mda mdc mdd mde mdm mdo mea mec med mee mem meo mma mmc mmd mme mmm mmo moa moc mod moe mom moo oaa oac oad oae oam oao oc- oca occ ocd ocm oco oda odc odd ode odm odo oea oec oed oee oem oeo om- oma omc omd ome omm omo oo- ooa ooc ood oom ooo