
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
There is a sequence where the first number is 6 and the second number is 3. Starting from the second number, each number is 5 less than the sum of the number before it and the number after it. What is the sum of the first 200 numbers in this sequence?

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