
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
Uncle Zhang and Uncle Li have a combined age of 56 years. When Uncle Zhang was half Uncle Li's current age, Uncle Li’s age at that time was equal to Uncle Zhang’s current age. How old is Uncle Zhang now?

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