O: Ycav
    
\: ҥޮ (Ϊ),     

m: 
   1 UԦ\      YҨ    ->   ҥޮ
   2 uC             Y_Ҩ2   ->   ҥޮ 
                        

  -- ]w ϼh, u,u,߽u,r,C

 Ҥؤo -- ]wҤe׻P׻ݤj 50, `׻ݤj 15

 [ --iѨtΨ̾ڧAnW渹,۰ʦwmP

 [ -- Űϰi̹ڻݨD  (Ǩ,,)

 |ӼƭȬOJ 1.M|R, 2.Ҥe(t), 3.Ҥ(t), 4.ҥ޲` 
