
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
At the end of the term, Bob wrote his current grades in singing in a row and placed multiplication signs between some of them. The product of the resulting numbers turned out to be 2007. What grade does Bob get in singing for the term? (The music teacher does not give "fails".)

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