-al a-a a-t aaa aad aaf aal aan aat ad- ada add adf adl adn adt af- afa afd aff afl afn aft al- ala ald alf all aln alt an- ana and anf anl ann ant at- ata atd atf atl atn att daa dad daf dal dan dat dda ddd ddf ddl ddn ddt dfa dfd dff dfl dfn dft dl- dla dld dlf dll dlt dna dnd dnf dnl dnn dnt dta dtd dtf dtl dtn dtt faa fad faf fal fan fat fda fdd fdf fdl fdn fdt ffa ffd fff ffl ffn fft fla fld flf fll fln flt fna fnd fnf fnl fnn fnt fta ftd ftf ftl ftn ftt la- laa lad laf lal lan lat lda ldd ldf ldl ldn ldt lfa lfd lff lfl lfn lft lla lld llf lll lln llt lna lnd lnl lnn lnt lta ltd ltf ltl ltt naa nad naf nal nan nat nda ndd ndf ndl ndn ndt nfa nfd nff nfl nfn nft nla nld nlf nll nln nlt nna nnf nnl nnn nnt nta ntd ntf ntn ntt taa tad taf tal tan tat tda tdd tdf tdl tdn tdt tfa tfd tff tfl tfn tft tla tld tlf tll tln tlt tna tnd tnf tnl tnn tnt tta ttd ttf ttl ttn ttt