
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
For any two sets $M$ and $N$, define $M-N=\{x|x\in M \text{ and } x\notin N\}$, $M*N=(M-N)\cup(N-M)$. Let $M=\{y|y\geq0\}$, $N=\{y|-3\leq y\leq 3\}$, then $M*N=$ ?

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