bbb bbd bbf bbi bbl bdb bdd bdf bdi bdl bfb bfd bff bfi bfl bi- bib bid bif bii bil blb bld blf bli bll dbb dbd dbf dbi dbl ddb ddd ddf ddi ddl dfb dfd dff dfi dfl di- dib did dif dii dil dl- dlb dld dlf dli dll fbb fbd fbf fbi fbl fdb fdd fdf fdi fdl ffd fff ffi ffl fib fid fif fii fil flb fld flf fli fll i-d i-f ibb ibd ibf ibi ibl idb idd idf idi idl ifb ifd iff ifi ifl iib iid iif iii iil il- ilb ild ilf ili ill lbb lbd lbf lbi lbl ldb ldd ldf ldi ldl lfb lfd lff lfi lfl lib lid lif lii lil llb lld llf lli lll