
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
$N_{0}$ is the set of all non-negative integers. The function $f(n)$ is such that $f: N_{0} \rightarrow N_{0}$, and for each $n \in N_{0}$, $f(f(n)) + f(n) = 2n + 3$. Find $f(1993)$.

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