
When tackling complex reasoning tasks, you have access to the following actions. Use them as needed to progress through your thought process.

[ASSESS]

[ADVANCE]

[VERIFY]

[SIMPLIFY]

[SYNTHESIZE]

[PIVOT]

[OUTPUT]

You should strictly follow the format below:

[ACTION NAME]

# Your action step 1

# Your action step 2

# Your action step 3

...

Next action: [NEXT ACTION NAME]


system
In the "Nine Chapters on the Mathematical Art," a tetrahedron with all four faces being right-angled triangles is referred to as a "biēnào." Given in the biēnào $M-ABC$, $MA \perpendicular$ plane $ABC$, and $MA=AB=BC=2$, the sum of the surface areas of the circumscribed sphere and the inscribed sphere of the biēnào is ______.

Present the answer in LaTex format: \boxed{Your answer}
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