c-- c-j ccc ccd ccf ccj cck ccm cco cdc cdd cdf cdj cdk cdm cdo cfc cfd cff cfk cfm cfo cjc cjd cjf cjk ckc ckd ckm cko cmc cmd cmf cmj cmk cmm cmo co- coc cod cof coj cok com coo dcc dcd dcf dck dcm dco ddc ddd ddf ddk ddm ddo dfc dfd dff dfj dfk dfm dfo dj- djc djd djf djk djm djo dkc dkk dkm dko dmc dmd dmf dmk dmm dmo doc dod dof doj dok dom doo fcc fcd fcf fcj fck fcm fco fdc fdd fdf fdj fdk fdm fdo ffc ffd fff ffk ffm ffo fjc fjd fjm fkc fkf fkj fkk fkm fmc fmd fmf fmj fmm fmo foc fof fok fom foo j-d jcc jcd jcf jck jcm jco jdc jdf jdm jdo jfc jfd jff jfj jfk jfm jfo jjc jjf jjj jjk jkk jkm jko jmc jmd jmf jmj jmm jmo joc jod jof joj jok jom joo kcc kcd kck kcm kdc kdf kdk kdm kdo kfc kfd kff kfm kfo kjc kkc kkk kkm kmc kmd kmf kmj kmk kmm kmo koc kod kof kok kom koo m-f m-o mc- mcc mcd mcf mck mcm mco mdc mdd mdf mdj mdk mdm mdo mfc mfd mff mfj mfm mfo mjc mjd mjj mjk mjm mkc mkd mkk mkm mko mmc mmd mmf mmj mmk mmm mmo moc mod mof mok mom moo oc- occ ocd ocf ocj ock ocm oco odc odd odf odm odo of- ofc ofd off ofm ofo ojc ojd ojm ojo okc okd okj okk oko om- omc omd omf omj omm omo oo- ooc ood oof ook oom ooo