
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
If the abscissa of all points on the graph of the function $y=\tan x$ is shortened to $\frac{1}{4}$ of the original length (while the ordinate remains unchanged), then the resulting graph is shifted to the left by $\frac{π}{12}$ units and then shifted upwards by $2$ units to obtain the graph of the function $f(x)$. What is the center of symmetry of the graph of $f(x)$?

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