
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 that the function $f(x)$ is an odd function defined on $\mathbb{R}$ and satisfies $f(x) = f(x + 5)$ for any $x \in \mathbb{R}$. Also, when $x \in (0, \frac{5}{2})$, $f(x) = 2^x$. Find the value of $f(2014) + f(2015)$.

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