
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
A student read the book with  $480$  pages two times. If he in the second time for every day read  $16$  pages more than in the first time and he finished it  $5$  days earlier than in the first time. For how many days did he read the book in the first time?

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