
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
At Triumph High School, the student lockers are numbered consecutively starting from 1 and extending to locker number 2999. Each plastic digit for numbering the lockers costs three cents. Calculate the total cost to label all the lockers. How many lockers are there?
A) 2999
B) 2000
C) 3999
D) 3500

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