
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
Let $D$ be the circle with the equation $x^2 - 24x + y^2 - 4y = -36$. Find the center $(a, b)$ and the radius $r$ of $D$, and compute the value of $a+b+r$.

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