a-a a-c a-t aaa aac aad aam aas aat ac- aca acc acd acm acs act ad- ada adc add adm ads adt ama amc amd amm ams amt as- asa asc asd asm ass ast at- ata atc atd atm ats att c-- caa cac cad cam cas cat cca ccc ccd ccm ccs cct cda cdc cdd cdm cds cdt cma cmc cmd cmm cms cmt csa csc csd csm css cst cta ctc ctd ctm cts ctt daa dac dad dam das dat dca dcc dcd dcm dcs dct dda ddc ddd ddm dds ddt dma dmc dmd dmm dms dmt dsa dsc dsd dsm dss dst dta dtc dtd dtm dts dtt maa mac mad mam mas mat mc- mca mcc mcd mcm mcs mct mda mdc mdd mdm mds mdt mma mmc mmd mmm mms mmt msa msc msd msm mss mst mta mtc mtd mtm mts mtt saa sac sad sam sas sat sca scc scd scm scs sct sda sdc sdd sdm sds sdt sma smc smd smm sms smt ss- ssa ssc ssd ssm sss sst sta stc std stm sts stt taa tac tad tam tas tat tca tcc tcd tcm tcs tct tda tdc tdd tdm tds tdt tma tmc tmd tmm tms tmt tsa tsc tsd tsm tss tst tta ttc ttd ttm tts ttt