
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
Consider a $5\times 5$ block of calendar dates ranging sequentially from 1 to 25. Initially, reverse the order of numbers in the third and the fifth rows. Then, compute and find the positive difference between the sums along the two main diagonals (one from top left to bottom right and the other from top right to bottom left).
A) 2
B) 4
C) 6
D) 8
E) 10

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