-al a-a a-t aaa aad aaf aal aat ad- ada add adf adl adt af- afa afd aff afl aft al- ala ald alf all alt at- ata atd atf atl att daa dad daf dal dat dda ddd ddf ddl ddt dfa dfd dff dfl dft dl- dla dld dlf dll dlt dta dtd dtf dtl dtt faa fad faf fal fat fda fdd fdf fdl fdt ffa ffd fff ffl fft fla fld flf fll flt fta ftd ftf ftl ftt la- laa lad laf lal lat lda ldd ldf ldl ldt lfa lfd lff lfl lft lla lld llf lll llt lta ltd ltf ltl ltt taa tad taf tal tat tda tdd tdf tdl tdt tfa tfd tff tfl tft tla tld tlf tll tlt tta ttd ttf ttl ttt