a-a a-c aaa aac aad aam aan aao ac- aca acc acd acm acn aco ad- ada adc add adm adn ado ama amc amd amm amn amo an- ana anc and anm ann ano aoa aoc aod aom aon aoo c-- caa cac cad cam can cao cca ccc ccd ccm ccn cco cda cdc cdd cdm cdn cdo cma cmc cmd cmm cmn cmo cn- cna cnc cnd cnm cnn cno co- coa coc cod com con coo daa dac dad dam dan dao dca dcc dcd dcm dcn dco dda ddc ddd ddm ddn ddo dma dmc dmd dmm dmn dmo dna dnc dnd dnm dnn dno doa doc dod dom don doo m-o maa mac mad mam man mao mc- mca mcc mcd mcm mcn mco mda mdc mdd mdm mdn mdo mma mmc mmd mmm mmn mmo mna mnc mnm mnn mno moa moc mod mom mon moo naa nac nad nam nan nao nca ncc ncd ncm ncn nco nda ndc ndd ndm ndn ndo nma nmc nmd nmm nmn nmo nna nnc nnm nnn nno no- noa noc nod nom non noo oaa oac oad oam oan oao oc- oca occ ocd ocm ocn oco oda odc odd odm odn odo om- oma omc omd omm omn omo on- ona onc ond onn ono oo- ooa ooc ood oom oon ooo