
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 $f\left(x\right)=-x^{2}+4x$, where $x\in \left[m,4\right]$, and the range of $f(x)$ is $\left[0,4\right]$, the range of the real number $m$ is ______.

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