x6 -> x4 Ҵµ
̰ γ.
X2 ⺻ ˰ ִµ... 2 ǰ;;;;
2 ϴ Һڴ X2 Ÿ ƴҰ .
suv °ǵ.... ϴٺ ..
ȵdz
, ̷ ̳
X2 ʹ ̻ѵ ̰
ո ° ...
ϳ
x6 -> x4 Ҵµ
̰ γ.