Alfred and Bonnie play a game in which they take turns tossing a fair coin. The winner of a game is the first person to obtain a head. Alfred and Bonnie play this game several times with the stipulation that the loser of a game goes first in the next game. Suppose that Alfred goes first in the first game, and that the probability that he wins the sixth game is $$m/n\,$$, where $$m\,$$ and $$n\,$$ are relatively prime positive integers. What are the last three digits of $$m+n\,$$?

(第十一届AIME1993 第11题)