
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
Vanya thought of a two-digit number, then swapped its digits and multiplied the resulting number by itself. The result turned out to be four times the original number. What number did Vanya think of?

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