a-a a-t aaa aad aae aaf aap aat ad- ada add ade adf adp adt aea aed aee aef aep aet af- afa afd afe aff afp aft ap- apa apd ape apf app apt at- ata atd ate atf atp att daa dad dae daf dap dat dda ddd dde ddf ddp ddt de- dea ded dee def dep det dfa dfd dfe dff dfp dft dpa dpd dpe dpf dpp dpt dta dtd dte dtf dtp dtt eaa ead eae eaf eap eat ed- eda edd ede edf edp edt eea eed eee eef eep eet ef- efa efd efe eff efp eft ep- epa epd epe epf epp ept eta etd ete etf etp ett faa fad fae faf fap fat fda fdd fde fdf fdp fdt fea fed fee fef fep fet ffa ffd ffe fff ffp fft fpa fpd fpe fpp fpt fta ftd fte ftf ftp ftt p-p paa pad pae paf pap pat pda pdd pde pdf pdp pdt pea ped pee pef pep pet pfa pfd pfe pff pfp pft ppa ppd ppe ppf ppp ppt pt- pta ptd pte ptf ptp ptt taa tad tae taf tap tat tda tdd tde tdf tdp tdt te- tea ted tee tef tep tet tfa tfd tfe tff tfp tft tpa tpd tpe tpf tpp tpt tta ttd tte ttf ttp ttt