c-- ccc ccd ccm cct ccv cdc cdd cdm cdt cdv cmc cmd cmm cmt cmv ctc ctd ctm ctt ctv cvc cvd cvm cvt cvv dcc dcd dcm dct dcv ddc ddd ddm ddt dmc dmd dmm dmt dmv dtc dtd dtm dtt dtv dvc dvd dvm dvt m-v mc- mcc mcd mcm mct mcv mdc mdd mdm mdt mdv mmc mmd mmm mmt mmv mtc mtd mtm mtt mtv mvc mvd mvm mvt mvv tcc tcd tcm tct tcv tdc tdd tdm tdt tdv tmc tmd tmm tmt tmv ttc ttd ttm ttt ttv tvc tvd tvm tvt vcc vcd vcm vct vdc vdd vdm vdt vdv vm- vmc vmd vmm vmt vtc vtm vtt vtv vvc vvm vvt vvv