bbb bbd bbf bbg bbi bbt bdb bdd bdf bdg bdi bdt bfb bfd bff bfg bfi bft bgb bgd bgf bgg bgi bgt bi- bib bid bif big bii bit btb btd btf btg bti btt dbb dbd dbf dbg dbi dbt ddb ddd ddf ddg ddi ddt dfb dfd dff dfg dfi dft dgd dgf dgg dgi dgt di- dib did dif dig dii dit dtb dtd dtf dtg dti dtt fbb fbd fbf fbg fbi fbt fdb fdd fdf fdg fdi fdt ffd fff ffg ffi fft fgb fgd fgf fgg fgi fgt fib fid fif fig fii fit ftb ftd ftf ftg fti ftt g-d gbd gbf gbg gbi gbt gdb gdd gdf gdi gdt gfb gfd gff gfi gft ggb ggd ggg ggi ggt gib gid gif gig gii git gtb gtd gtf gtg gti gtt i-d i-f ibb ibd ibf ibg ibi ibt idb idd idf idg idi idt ifb ifd iff ifg ifi ift igb igd igf igg igi igt iib iid iif iii iit itb itd itf itg iti itt tbb tbd tbf tbg tbi tbt tdb tdd tdf tdg tdi tdt tfb tfd tff tfg tfi tft tgb tgf tgg tgi tgt tib tid tif tig tii tit ttb ttd ttf ttg tti ttt