
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 high school has a total of 2000 students. Using stratified sampling, a sample of 100 students is drawn from students across three grades. If 30 students are drawn from both the first and second grades, then the number of students drawn from the third grade is $\boxed{40}$.

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