
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
Place the signs $\times$ and : in the expression

$$
1 \square 3 \square 3^{2} \square 3^{4} \square 3^{8} \square 3^{16} \square 3^{32} \square 3^{64} = 3^{99}
$$

so that the value of the expression is equal to $3^{99}$.

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