(-1,0,1)
! X- O8 s" s) l4 D- U(-2,0,2)
3 t: ^' R: [7 _& U( m(-3,0,3)tvb now,tvbnow,bttvb) G/ A& S T9 ^( a8 H5 Y7 @
...........tvb now,tvbnow,bttvb. q2 W1 X# u* s: G" j/ o9 c6 N
...........
3 C6 ~8 D) a. T5 \% e% N6 r(-n,0,n)
' [% @8 u! \0 h" M) s5.39.217.76以上咁多組都得 |