a-a a-t aaa aad aaf aam aao aat ad- ada add adf adm ado adt af- afa afd aff afm afo aft ama amd amf amm amo amt aoa aod aof aom aoo aot at- ata atd atf atm ato att daa dad daf dam dao dat dda ddd ddf ddm ddo ddt dfa dfd dff dfm dfo dft dma dmd dmf dmm dmo dmt doa dod dof dom doo dot dta dtd dtf dtm dto dtt faa fad faf fam fao fat fda fdd fdf fdm fdo fdt ffa ffd fff ffm ffo fft fma fmd fmf fmm fmo fmt foa fof fom foo fot fta ftd ftf ftm fto ftt m-f m-o maa mad maf mam mao mat mda mdd mdf mdm mdo mdt mfa mfd mff mfm mfo mft mma mmd mmf mmm mmo mmt moa mod mof mom moo mot mta mtd mtf mtm mto mtt oaa oad oaf oam oao oat oda odd odf odm odo odt of- ofa ofd off ofm ofo oft om- oma omd omf omm omo omt oo- ooa ood oof oom ooo oot ot- ota otd otf otm oto ott taa tad taf tam tao tat tda tdd tdf tdm tdo tdt tfa tfd tff tfm tfo tft tma tmd tmf tmm tmo tmt to- toa tod tof tom too tot tta ttd ttf ttm tto ttt