Control Multilevel Dynamic Movieclips

Hi Every one

How to control multilevel Dynamic Movieclips

Example

Lets take an animation, Circle is movie form one end of the stage to another.

Let say “Circle1” is the instant for the animation MC(Movie Clip).

This “Circle1” MC is placed inside a another MC called “Shape1”.

So Technically we can control the MC by giving the instant name by “_root.Shape1.Circle1”

Now, I have 3 MCs “Circle1,Circle2,Circle3” are placed inside a “Shape1” MC like wise Shape1, Shape2,Shape3… " MC so 3*3= 9 MCs.

Now how to control the MC Dynamically? Let say i want to play the Shape2.Circle3

i=2;
j=3;
_root[“Shape”+i+".Circle"+j].paly();

It is not working…

Can some body help me on this…

Thanks