
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
A road 28 kilometers long is divided into three unequal parts. The distance between the midpoints of the outer parts is 16 km. Find the length of the middle part.

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