Three parallel lines $$L_1,L_2,L_3$$ are drawn in the plane such that the perpendicular distance between $$L_1$$ and $$L_2$$ is $$3$$ and the perpendicular distance between $$L_2$$ and $$L_3$$ is also $$3$$. A square $$ABCD$$ is constructed such that $$A$$ lies on $$L_1$$, $$B$$ lies on $$L_3$$ and $$C$$ lies on $$L_2$$. Find the area of the square.