a-a a-c a-t aaa aac aad aaf aam aar aat ac- aca acc acd acf acm acr act ad- ada adc add adf adm adr adt af- afa afc afd aff afm afr aft ama amc amd amf amm amr amt ar- ara arc ard arf arm arr art at- ata atc atd atf atm atr att c-- caa cac cad caf cam car cat cca ccc ccd ccf ccm ccr cct cda cdc cdd cdf cdm cdr cdt cfa cfc cfd cff cfm cfr cft cma cmc cmd cmf cmm cmr cmt cra crc crd crf crm crr crt cta ctc ctd ctf ctm ctr ctt daa dac dad daf dam dar dat dca dcc dcd dcf dcm dcr dct dda ddc ddd ddf ddm ddr ddt dfa dfc dfd dff dfm dfr dft dma dmc dmd dmf dmm dmr dmt dra drc drd drm drr drt dta dtc dtd dtf dtm dtr dtt faa fac fad faf fam far fat fca fcc fcd fcf fcm fcr fct fda fdc fdd fdf fdm fdr fdt ffa ffc ffd fff ffm ffr fft fma fmc fmd fmf fmm fmr fmt fra frc frd frf frm frr frt fta ftc ftd ftf ftm ftr ftt m-f m-r maa mac mad maf mam mar mat mc- mca mcc mcd mcf mcm mcr mct mda mdc mdd mdf mdm mdr mdt mfa mfc mfd mff mfm mfr mft mma mmc mmd mmf mmm mmr mmt mra mrc mrd mrf mrm mrr mrt mta mtc mtd mtf mtm mtr mtt ra- raa rac rad raf ram rar rat rca rcc rcd rcf rcm rcr rct rda rdc rdd rdf rdm rdr rdt rfa rfc rfd rff rfm rfr rft rma rmc rmd rmf rmm rmr rmt rra rrc rrd rrf rrm rrr rrt rta rtc rtd rtf rtm rtr rtt taa tac tad taf tam tar tat tca tcc tcd tcf tcm tcr tct tda tdc tdd tdf tdm tdr tdt tfa tfc tfd tff tfm tfr tft tma tmc tmd tmf tmm tmr tmt tra trc trd trf trm trr trt tta ttc ttd ttf ttm ttr ttt