
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
Define a new operation "☆" with the rule: $m$☆$n=m^{2}-mn+n$. For example, $2$☆$3=2^{2}-2\times 3+3=1$. Solve the following problems:<br/>
(1) $3$☆$4$;<br/>
(2) $\left(-1\right)$☆$[2$☆$\left(-3\right)]$.

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