
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
Given the function defined on $\mathbb{R}$, where the graph of the function is symmetric with respect to the line $x = \frac{3}{2}$, and for any real number $x$, it holds that $f(x) = -f\left(x + \frac{3}{2}\right).$ Given $f(-1) = 1$ and $f(0) = -2$, calculate the value of $f(2013) + f(2014) + f(2015)$.

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