
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
In a new math textbook, there are 91 problems. Yura started solving them in the mornings, beginning on September 6.

Each morning, starting from September 7, he solves one problem less than the previous morning (until the problems are finished).

In the evening of September 8, Yura realized that there are 46 problems left to solve in the textbook. On which date will he finish solving the textbook?

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