
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
Grandfather, father, and Xiaoming are currently 60 years old, 35 years old, and 11 years old, respectively. After how many years will grandfather's age equal the sum of Xiaoming and father's ages?

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