
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 sum:
\[
\sum^{50}_{i=1} \sum^{50}_{j=1} (2i + 2j + 3)
\]
A) 257500
B) 260000
C) 262500
D) 265000
E) 270000

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