
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
Calculate the expression:
\[ (4+5)(4^2+5^2)(4^4+5^4)(4^8+5^8)(4^{16}+5^{16})(4^{32}+5^{32})(4^{64}+5^{64}) \]
A) $9^{127}$
B) $5^{128} - 4^{128}$
C) $4^{127} + 5^{127}$
D) $5^{128} + 4^{128}$

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