
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
When Vanya was asked how old he was, he thought and said, "I am three times younger than my dad, but I am three times older than Seryozha." Then little Seryozha ran up and said that dad is 40 years older than him. How old is Vanya?

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