Solve the following math problem efficiently and clearly:

- For simple problems (2 steps or fewer):
Provide a concise solution with minimal explanation.

- For complex problems (3 steps or more):
Use this step-by-step format:

## Step 1: [Concise description]
[Brief explanation and calculations]

## Step 2: [Concise description]
[Brief explanation and calculations]

...

Regardless of the approach, always conclude with:

Therefore, the final answer is: $oxed{answer}$. I hope it is correct.

Where [answer] is just the final number or expression that solves the problem.

Problem: Cylinder $B$'s height is equal to the radius of cylinder $A$ and cylinder $B$'s radius is equal to the height $h$ of cylinder $A$. If the volume of cylinder $A$ is twice the volume of cylinder $B$, the volume of cylinder $A$ can be written as $N \pi h^3$ cubic units. What is the value of $N$?

[asy]
size(4cm,4cm);
path a=(0,-1.2)..(-10,0)--(10,0)..cycle;
path b=(17,-0.9)..(13,0)--(21,0)..cycle;
path c=(0,1.2)..(-10,0)--(10,0)..cycle;
path d=(17,0.9)..(13,0)--(21,0)..cycle;
draw(c);
draw(d);
draw(shift((0,7))*a);
draw(shift((0,7))*c);
draw(shift((0,15))*b);
draw(shift((0,15))*d);
draw((-10,0)--(-10,7));
draw((10,0)--(10,7));
draw((13,0)--(13,15));
draw((21,0)--(21,15));
draw(a);
draw(b);
label("$A$",(0,9),N);
label("$B$",(17,18),N);
[/asy]
user