
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 of all digits in the numbers from the sequence $1, 2, 3, \ldots, 500$.
A) 180001
B) 154756
C) 7245
D) 9000

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