a-a a-c a-t aaa aac aam aap aat ac- aca acc acm acp act ama amc amm amp amt ap- apa apc apm app apt at- ata atc atm atp att c-- caa cac cam cap cat cca ccc ccm ccp cct cma cmc cmm cmp cmt cpa cpc cpm cpp cpt cta ctc ctm ctp ctt maa mac mam map mat mc- mca mcc mcm mcp mct mma mmc mmm mmp mmt mpa mpc mpm mpp mpt mta mtc mtm mtp mtt p-p paa pac pam pap pat pca pcc pcm pcp pct pma pmc pmm pmp pmt ppa ppc ppm ppp ppt pt- pta ptc ptm ptp ptt taa tac tam tap tat tca tcc tcm tcp tct tma tmc tmm tmp tmt tpa tpc tpm tpp tpt tta ttc ttm ttp ttt