
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 school has two classes each in the third and fourth grades. The first class in the third grade has 4 more students than the second class in the third grade, and the first class in the fourth grade has 5 fewer students than the second class in the fourth grade. The third grade has 17 fewer students than the fourth grade. How many fewer students does the first class in the third grade have compared to the second class in the fourth grade?

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