
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
Calculate the difference between the sum of integers from 2401 to 2500 and the sum of integers from 301 to 400.
A) 205000
B) 210000
C) 215000
D) 220000

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