
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
Let \(x=-504\). What is the value of \(\Bigg\vert\Big\vert |x|-x\Big\vert-|x|\Bigg\vert-x\)?
A) 1008
B) 504
C) 0
D) 1512
E) 2016

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