
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
If $\{a_1,a_2,a_3,\ldots,a_n\}$ is a [set](https://artofproblemsolving.com/wiki/index.php/Set) of [real numbers](https://artofproblemsolving.com/wiki/index.php/Real_numbers), indexed so that $a_1 < a_2 < a_3 < \cdots < a_n,$ its complex power sum is defined to be $a_1i + a_2i^2+ a_3i^3 + \cdots + a_ni^n,$ where $i^2 = - 1.$  Let $S_n$ be the sum of the complex power sums of all nonempty [subsets](https://artofproblemsolving.com/wiki/index.php/Subset) of $\{1,2,\ldots,n\}.$  Given that $S_8 = - 176 - 64i$ and $S_9 = p + qi,$ where $p$ and $q$ are integers, find $|p| + |q|.$

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