bidy[8], body[8], doby[8], bido[7], dipy[7], diod[6],
dyb[7], bid[6], bod[6], boy[6], oby[6], boi[5], obi[5], dip[5], pod[5], idy[5], ody[5], opy[5], doi[4], ido[4], poi[4],
by[5], bi[4], bo[4], id[3], do[3], od[3], pi[3], op[3], po[3],
