
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
The age difference between two sisters is 4 years. If the cube of the age of the first sister is reduced by the cube of the age of the second sister, the result is 988. How old are each of the sisters?

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