bbb bbd bbg bbi bbk bdb bdd bdg bdi bdk bgb bgd bgg bgi bgk bi- bib bid big bii bik bkb bkg bkk dbb dbd dbg dbi dbk ddb ddd ddg ddi ddk dgd dgg dgi dgk di- dib did dig dii dik dkb dkg dki dkk g-d gbd gbg gbi gbk gdb gdd gdi gdk ggb ggd ggg ggi gib gid gig gii gik gkb gkd i-d ibb ibd ibg ibi ibk idb idd idg idi idk igb igd igg igi igk iib iid iii ikb iki ikk kbb kbd kbi kbk kdb kdg kdk kgb kgd kgi kib kid kig kii kik kkb kki kkk