a-a a-c aaa aac aad aam aao aas ac- aca acc acd acm aco acs ad- ada adc add adm ado ads ama amc amd amm amo ams aoa aoc aod aom aoo aos as- asa asc asd asm aso ass c-- caa cac cad cam cao cas cca ccc ccd ccm cco ccs cda cdc cdd cdm cdo cds cma cmc cmd cmm cmo cms co- coa coc cod com coo cos csa csc csd csm cso css daa dac dad dam dao das dca dcc dcd dcm dco dcs dda ddc ddd ddm ddo dds dma dmc dmd dmm dmo dms doa doc dod dom doo dos dsa dsc dsd dsm dso dss m-o maa mac mad mam mao mas mc- mca mcc mcd mcm mco mcs mda mdc mdd mdm mdo mds mma mmc mmd mmm mmo mms moa moc mod mom moo mos msa msc msd msm mso mss oaa oac oad oam oao oas oc- oca occ ocd ocm oco ocs oda odc odd odm odo ods om- oma omc omd omm omo oms oo- ooa ooc ood oom ooo oos os- osa osc osd osm oso oss saa sac sad sam sao sas sca scc scd scm sco scs sda sdc sdd sdm sdo sds sma smc smd smm smo sms soa soc sod som soo sos ss- ssa ssc ssd ssm sso sss