
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
Pinocchio has many coins of 5 and 6 soldi, with more than 10 coins of each type. After going to a store and buying a book for $N$ soldi, he realized that he couldn't pay for it without requiring change. What is the largest possible value of the natural number $N$ if it is not more than 50?

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