a-a a-t aaa aad aam aao aat ad- ada add adm ado adt ama amd amm amo amt aoa aod aom aoo aot at- ata atd atm ato att daa dad dam dao dat dda ddd ddm ddo ddt dma dmd dmm dmo dmt doa dod dom doo dot dta dtd dtm dto dtt m-o maa mad mam mao mat mda mdd mdm mdo mdt mma mmd mmm mmo mmt moa mod mom moo mot mta mtd mtm mto mtt oaa oad oam oao oat oda odd odm odo odt om- oma omd omm omo omt oo- ooa ood oom ooo oot ot- ota otd otm oto ott taa tad tam tao tat tda tdd tdm tdo tdt tma tmd tmm tmo tmt to- toa tod tom too tot tta ttd ttm tto ttt