easy la ' O' i- T& k s+ H3 U1 ^" q% [4 xthe last with has the number in form of 2^n and has the biggest n among all公仔箱論壇$ v. W4 Z8 Y2 E; }8 s1 R
i.e 65536 = 2^16
easy la& W6 z+ d' J1 B0 P9 q/ G- Q
the last person must has the number in form of 2^n and has the biggest n among all & O, {& b6 Z) u4 H& ~i.e 65536 = 2^16