
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
In a public park, a circular arrangement is designed as follows: at the center, there is a circular water fountain surrounded by a ring-shaped flower garden. Outside the garden, there is a walking path and then another inner walking path adjacent to the garden but inside it. The water fountain has a diameter of 12 feet. The flower garden ring is 9 feet wide, the outer walking path is 7 feet wide, and the inner walking path is 3 feet wide. Calculate the diameter of the outermost boundary of the outer walking path.

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